Percent Assessment
Objective
Big Idea
The Test
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
Correct answer: C
Problem 7 - Find a total with sales tax
Correct answer: B
Problem 8 - Simple Interest
Correct answer: D
Problem 9 - Equivalent expressions
Correct answer: B
Problem 10 - Find original price
Correct answer: B
Problem 11 - Equivalent expressions
Correct answer: D
Problem 12 - Equivalent expressions (sale price)
Correct answer: Any two of the three expressions ---> d - 0.32d; 0.68d; d(1-0.32)
Problem 13 - Equivalent expressions (total with sales tax)
Correct answer: Any two of the three expressions ---> x + 0.09x; 1.09x; x(1+0.09)
Scoring
The assessment is worth a total of 15 points.
Problems 1-11 are each worth 1 point.
Problem 12 is worth 2 points for 2 valid expressions.
Problem 13 is worth 2 points for 2 valid expressions.
11 out of 15 points would be considered proficient
12+ out of 15 points would be considered mastery.
