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2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

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Page 1: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 2: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number.

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 3: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 7.

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 4: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 7.

1. Pick a number.

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 5: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 7.

1. Pick a number. 2. Add 7

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 6: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 7.

1. Pick a number. 2. Add 7 3. Multiply by 2

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 7: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 7.

1. Pick a number. 2. Add 7 3. Multiply by 2

1. Pick a number.

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 8: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 7.

1. Pick a number. 2. Add 7 3. Multiply by 2

1. Pick a number. 2. Add 7

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 9: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 7.

1. Pick a number. 2. Add 7 3. Multiply by 2

1. Pick a number. 2. Add 7 3. Multiply by 2

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 10: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 7.

1. Pick a number. 2. Add 7 3. Multiply by 2

1. Pick a number. 2. Add 7 3. Multiply by 2 4. Subtract 5

Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other.

Page 11: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

Subtract 20. Show them how to turn the instructions into an expression with variables.

Page 12: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic

Subtract 20. Show them how to turn the instructions into an expression with variables.

Page 13: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number.

Subtract 20. Show them how to turn the instructions into an expression with variables.

Page 14: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 70.

Subtract 20. Show them how to turn the instructions into an expression with variables.

Page 15: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 70. 3. Subtract 50

Subtract 20. Show them how to turn the instructions into an expression with variables.

Page 16: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 70. 3. Subtract 50 4. Add 5.

Subtract 20. Show them how to turn the instructions into an expression with variables.

Page 17: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 70. 3. Subtract 50 4. Add 5. 5. Subtract 10.

Subtract 20. Show them how to turn the instructions into an expression with variables.

Page 18: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 70. 3. Subtract 50 4. Add 5. 5. Subtract 10. 6. Add 30.

Subtract 20. Show them how to turn the instructions into an expression with variables.

Page 19: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

2. Number Magic 1. Pick a number. 2. Add 70. 3. Subtract 50 4. Add 5. 5. Subtract 10. 6. Add 30. 7. Subtract 25

Subtract 20. Show them how to turn the instructions into an expression with variables.

Page 20: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic
Page 21: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

3. Impress A Friend

Page 22: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Three Swap

We’re gonna talk about number tricks today, which are like magic tricks only a lot cooler. ‘Cause they have math in them. The number will always be 7.

Page 23: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

7. Number Tricks! The Three Swap

We’re gonna talk about number tricks today, which are like magic tricks only a lot cooler. ‘Cause they have math in them. The number will always be 7.

Page 24: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

7. Number Tricks! The Three Swap

We’re gonna talk about number tricks today, which are like magic tricks only a lot cooler. ‘Cause they have math in them. The number will always be 7.

Page 25: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

7. Number Tricks! The Three Swap

We’re gonna talk about number tricks today, which are like magic tricks only a lot cooler. ‘Cause they have math in them. The number will always be 7.

Page 26: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

7. Number Tricks! The Three Swap

We’re gonna talk about number tricks today, which are like magic tricks only a lot cooler. ‘Cause they have math in them. The number will always be 7.

Page 27: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

5. Divide by 3.

7. Number Tricks! The Three Swap

We’re gonna talk about number tricks today, which are like magic tricks only a lot cooler. ‘Cause they have math in them. The number will always be 7.

Page 28: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

5. Divide by 3.

6. Subtract your original number.

7. Number Tricks! The Three Swap

We’re gonna talk about number tricks today, which are like magic tricks only a lot cooler. ‘Cause they have math in them. The number will always be 7.

Page 29: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 30: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 31: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 32: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

18

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 33: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

18

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 34: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

18

25

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 35: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

3. Multiply the result by 4.

18

25

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 36: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

3. Multiply the result by 4.

18

25

100

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 37: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

18

25

100

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 38: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

18

25

100

84

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 39: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

18

25

100

84

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 40: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

18

25

100

84

21

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 41: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

6. Subtract 3.

18

25

100

84

21

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 42: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

6. Subtract 3.

18

25

100

84

21

18

7. Number Tricks! The Corner Kick

The number will always be your original.

Page 43: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

6. Subtract 3.

The Corner Kick

The number will always be your original number.

Page 44: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

6. Subtract 3.

The Corner Kick

x

The number will always be your original number.

Page 45: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

6. Subtract 3.

The Corner Kick

x + 7€

x

The number will always be your original number.

Page 46: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

6. Subtract 3.

The Corner Kick

4 x + 7( )€

x + 7€

x

The number will always be your original number.

Page 47: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

6. Subtract 3.

The Corner Kick

4 x + 7( ) −16

4 x + 7( )€

x + 7€

x

The number will always be your original number.

Page 48: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

6. Subtract 3.

The Corner Kick

4 x + 7( ) −164

4 x + 7( ) −16

4 x + 7( )€

x + 7€

x

The number will always be your original number.

Page 49: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Add 7 to it.

3. Multiply the result by 4.

4. Subtract 16.

5. Divide by 4.

6. Subtract 3.

The Corner Kick

4 x + 7( ) −164

− 3

4 x + 7( ) −164

4 x + 7( ) −16

4 x + 7( )€

x + 7€

x

The number will always be your original number.

Page 50: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

5. Divide by 3.

6. Subtract your original number.

7. Number Tricks! The Three Swap

Page 51: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

5. Divide by 3.

6. Subtract your original number.

7. Number Tricks! The Three Swap

x

Page 52: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

5. Divide by 3.

6. Subtract your original number.

7. Number Tricks! The Three Swap

x + 9€

x

Page 53: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

5. Divide by 3.

6. Subtract your original number.

7. Number Tricks! The Three Swap

3 x + 9( )€

x + 9€

x

Page 54: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

5. Divide by 3.

6. Subtract your original number.

7. Number Tricks! The Three Swap

3 x + 9( ) − 6

3 x + 9( )€

x + 9€

x

Page 55: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

5. Divide by 3.

6. Subtract your original number.

7. Number Tricks! The Three Swap

3 x + 9( ) − 63

3 x + 9( ) − 6

3 x + 9( )€

x + 9€

x

Page 56: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

1. Pick a number between 1 and 25.

2. Add 9 to it.

3. Multiply the result by 3.

4. Subtract 6.

5. Divide by 3.

6. Subtract your original number.

7. Number Tricks! The Three Swap

3 x + 9( ) − 63

− x

3 x + 9( ) − 63

3 x + 9( ) − 6

3 x + 9( )€

x + 9€

x

Page 57: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks!

9x −18( )9

− x + 2

9x −18( )9

− x

9x −18( )9

9x −18€

9x€

x

The number will always be 0.

Page 58: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

9x −18( )9

− x + 2

9x −18( )9

− x

9x −18( )9

9x −18€

9x€

x

The number will always be 0.

Page 59: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Multiply it by 9.

9x −18( )9

− x + 2

9x −18( )9

− x

9x −18( )9

9x −18€

9x€

x

The number will always be 0.

Page 60: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Multiply it by 9.

3. Subtract 18.

9x −18( )9

− x + 2

9x −18( )9

− x

9x −18( )9

9x −18€

9x€

x

The number will always be 0.

Page 61: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Multiply it by 9.

3. Subtract 18.

4. Divide by 9.

9x −18( )9

− x + 2

9x −18( )9

− x

9x −18( )9

9x −18€

9x€

x

The number will always be 0.

Page 62: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Multiply it by 9.

3. Subtract 18.

4. Divide by 9.

5. Subtract your original number.

9x −18( )9

− x + 2

9x −18( )9

− x

9x −18( )9

9x −18€

9x€

x

The number will always be 0.

Page 63: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Multiply it by 9.

3. Subtract 18.

4. Divide by 9.

5. Subtract your original number.

6. Add 2.

9x −18( )9

− x + 2

9x −18( )9

− x

9x −18( )9

9x −18€

9x€

x

The number will always be 0.

Page 64: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Lefty No-Looker

The number will always be 27.

Page 65: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

The number will always be 27.

Page 66: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

The number will always be 27.

Page 67: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

The number will always be 27.

Page 68: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

x + 74

The number will always be 27.

Page 69: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

x + 74

x + 7

The number will always be 27.

Page 70: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

x + 74

x + 7€

x

The number will always be 27.

Page 71: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks!

6. Subtract your original number.

The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

x + 74

x + 7€

x

The number will always be 27.

Page 72: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks!

5. Multiply by 4.

6. Subtract your original number.

The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

x + 74

x + 7€

x

The number will always be 27.

Page 73: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks!

4. Add 5.

5. Multiply by 4.

6. Subtract your original number.

The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

x + 74

x + 7€

x

The number will always be 27.

Page 74: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks!

3. Divide by 4.

4. Add 5.

5. Multiply by 4.

6. Subtract your original number.

The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

x + 74

x + 7€

x

The number will always be 27.

Page 75: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks!

2. Add 7.

3. Divide by 4.

4. Add 5.

5. Multiply by 4.

6. Subtract your original number.

The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

x + 74

x + 7€

x

The number will always be 27.

Page 76: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

7. Number Tricks! 1. Pick a number between 1

and 25.

2. Add 7.

3. Divide by 4.

4. Add 5.

5. Multiply by 4.

6. Subtract your original number.

The Lefty No-Looker

4 x + 74

+ 5"

# $

%

& ' − x

4 x + 74

+ 5"

# $

%

& '

x + 74

+ 5

x + 74

x + 7€

x

The number will always be 27.

Page 77: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic
Page 78: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically

Page 79: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number.

Page 80: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15.

Page 81: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

Page 82: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number.

Page 83: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4.

Page 84: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

Page 85: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number.

Page 86: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5

Page 87: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

Page 88: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number.

Page 89: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4.

Page 90: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

Page 91: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number.

Page 92: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3.

Page 93: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

Page 94: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number.

Page 95: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7.

Page 96: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

Page 97: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number.

Page 98: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3.

Page 99: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

Page 100: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number.

Page 101: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2.

Page 102: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

Page 103: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

Page 104: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

Page 105: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

Page 106: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

Page 107: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

Page 108: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

Page 109: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

Page 110: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

21

Page 111: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

21

Page 112: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

21

17

Page 113: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

21

17

-5

Page 114: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

21

17

-5

15

Page 115: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

21

17

-5

15

Page 116: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

4. Writing These Mathematically 1. Pick a number. 2. Subtract 15. 3. The result is 12.

1. Pick a number. 2. Divide by 4. 3. The result is -5.

1. Pick a number. 2. Add 8.5 3. The result is 72.

1. Pick a number. 2. Multiply by 4. 3. The result is -4.

1. Pick a number. 2. Multiply by 2/3. 3. The result is 14.

1. Pick a number. 2. Add -7. 3. The result is 10.

1. Pick a number. 2. Multiply by -3. 3. The result is 15.

1. Pick a number. 2. Divide by -2. 3. The result is -7.5.

27

-20

63.5

-1

21

17

-5

15

Page 117: 2. Number Magic - dy/dan · 2014-10-29 · 2. Number Magic Act like your magic trick is the biggest deal in the world. Have them develop a magic trick for each other. 2. Number Magic

Subtract 20. Show them how to turn the instructions into an expression with variables.