Percent Assessment

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Objective

Students are assessed on the percent unit.

Big Idea

This test covers all aspects of percent problems addressed in the unit.

Lesson Author

Grant Harris

New Orleans, LA

Grade Level

Seventh grade

Subjects

Math

Number Sense and Operations

Percentages

Standards

7.RP.A.3

Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error.

7.EE.A.2

Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related. For example, a + 0.05a = 1.05a means that “increase by 5%” is the same as “multiply by 1.05.”

MP1

Make sense of problems and persevere in solving them.

MP2

Reason abstractly and quantitatively.

MP3

Construct viable arguments and critique the reasoning of others.

MP4

Model with mathematics.

The Test

50 minutes

Here is an answer key. I tried to make sure to include every example mentioned in the standard 7.rp.3:

"Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error."

I did not however include percent error. Also 7.EE.2 is represented for equivalent expressions.

Problem 1 - Apply percents of increase and decrease

Correct answer: B

Problem 2 - Find percent of change

Correct answer: A

Problem 3 - Find total given a part and percent

Correct answer: D

Problem 4 - Find a commission

Correct answer: C

Problem 5 - Find a sale price

Correct answer: B

Problem 6 - Find a markup