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Multistep Percent Problems 7 th Grade – Pre-Algebra

Multistep Percent Problems – 7th Grade – Pre-Algebra

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Page 1: Multistep Percent Problems – 7th Grade – Pre-Algebra

Multistep Percent Problems7th Grade – Pre-Algebra

Page 2: Multistep Percent Problems – 7th Grade – Pre-Algebra

Lesson ObjectiveObjectives: Students will be able to:

Translate percent problems from written form to numerical form.

Convert percentages to fractions and decimals.

Solve multistep percent problems in numerical form.

Page 3: Multistep Percent Problems – 7th Grade – Pre-Algebra

What do you think of when you hear the word..

sale

Page 4: Multistep Percent Problems – 7th Grade – Pre-Algebra

sale

Page 5: Multistep Percent Problems – 7th Grade – Pre-Algebra

What tools do we need to compare different sales? We need to know how to

change percentages to fractions and decimals.

50% = = 0.50

We need to know how to translate percent problems.

Five = 5

50 100

Page 6: Multistep Percent Problems – 7th Grade – Pre-Algebra

How to change percentages to fractions and decimals:

50 % = fifty percent

_____ 100

Divide 100

centper

50 % = 50_____100

Page 7: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 25% of 36?

Page 8: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 25% of 36?

x

Page 9: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 25% of 36?

x =

Page 10: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 25% of 36?

x =0.25

Page 11: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 25% of 36?

x =0.25 ●

Page 12: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 25% of 36?

x =0.25 ● 36

Page 13: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 25% of 36?

x =0.25 ● 36

9=x

Page 14: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 30% of 54?

Page 15: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 30% of 54?

x

Page 16: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 30% of 54?

x =

Page 17: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 30% of 54?

x =0.30

Page 18: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 30% of 54?

x =0.30 ●

Page 19: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 30% of 54?

x =0.30 ● 54

Page 20: Multistep Percent Problems – 7th Grade – Pre-Algebra

Example Problem

What is 30% of 54?

x =0.30 ● 54

16.2=x

Page 21: Multistep Percent Problems – 7th Grade – Pre-Algebra

Apple iPod Shuffle

Original Price: $46.00

Sale Price: $35.99

20% discount off all iPods

Page 22: Multistep Percent Problems – 7th Grade – Pre-Algebra

California Republic Sweatshirt

Original Price: $39.99

Sale Price: $34.99

15% discount off all sweatshirts

Page 23: Multistep Percent Problems – 7th Grade – Pre-Algebra

Debrief Questions

Evaluation - How does language influence our

understanding of mathematics?

Analysis - What is the difference between the

words “of” and “out of?”

Application - How would you use what you have learned to

help you make better choices when

shopping?