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Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Multiplying by 2 Digits Created by Mr. Tovar January, 2004

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What multiplication operation is represented by the picture?

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Page 1: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Multiplying by 2 Digits

Created by Mr. TovarJanuary, 2004

Page 2: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

What multiplication operation is

represented by the picture?

Page 3: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Let’s look.Each box has 32 little squares and there are 3 boxes

in total.

32

32

32

Page 4: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Or, that is, that the MULTIPLICATION

operation is......32

32

32

Page 5: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

32 x 3

VERY GOOD !!!!32

32

32

Page 6: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Another way of writing 32 x 3

is:

32 x 3

32

32

32

Page 7: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Let’s Learn to Multiply by 2-digit Numbers

2 8x 6

O TSTEPS :

6 x 8 =We multiply the Ones 4 8

8

+4 OT

Page 8: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Learning to Multiply

2 8x 6

O TSTEPS:

6 x 8 =We multiply the Ones 4 8

8

+4

6

Multiply the Ones by the Tens and add what we took

6x2 = 1 6

OT

H

H

1

12 + 4 +4

Page 9: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Practice 1

3 4x 3

O TSTEPS:

3 x 4 =We multiply the Ones 1 2

2

+1 OT

Page 10: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Practice 2

3 4x 3

O TSTEPS:

3 x 4 =We multiply the Ones 1 2

2

+1

0

We multiply the Ones by the Tens and add what we took

3x3 = 1 0

OT

H

H

1

9 + 1 +1

Page 11: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Exercise 1

5 6x 7

O T

2

+4

9

H

3

Page 12: Multiplying by 2 Digits Created by Mr. Tovar January, 2004

Exercise 2

6 4x 8

O T

2

+3

1

H

5