MSTAR Practice Worksheet

Lesson 4-4: Find and Compare with Percentages

Grade 6 Mathematics · Standard 6.AT.4

Name: Date:

These are MSTAR-style questions written for this curriculum to rehearse the format. They are not official Maryland assessment items. MSTAR — Maryland's new state test, first given in spring 2027 — uses the same kinds of questions you see here: selected response, select-all, two-part evidence questions, and written responses.

Part A — Skills Check

Warm up with the lesson's core skills — one best answer each.

Question 1Selected response · 1 point

What is 50% of 84?

A34
B42
C50
D168

Question 2Selected response · 1 point

What is 10% of 320?

A3.2
B32
C64
D320

Question 3Selected response · 1 point

What is 20% of 150?

Question 4Selected response · 1 point

What is 40% of 50?

Question 5Selected response · 1 point

An arcade prize costs 240 tickets. If you have a coupon for 15% off, how many tickets do you save?

A15 tickets
B24 tickets
C36 tickets
D204 tickets

Question 6Selected response · 1 point

A game has 120 points. A player earns 35% of the points. How many points is that?

A35
B42
C85
D155

Part B — Test-Format Questions

These match the state test's formats: two-part questions, select-all, and written responses.

Question 7Two-part question

Part A

At West Middle School, 45% of the 360 sixth-grade students participate in after-school sports. How many sixth-grade students participate in sports?

Fill in the bubble next to the one best answer.

A144 students
B160 students
C162 students
D180 students

Part B

Answer Part A before Part B — Part B asks about your reasoning.

Which calculation method accurately justifies this solution in Part A?

AMultiply the decimal representation of the percent by the whole: 0.45 × 360 = 162.
BSubtract 45 from 360: 360 - 45 = 315.
CDivide 360 by 45: 360 ÷ 45 = 8.
DMultiply 360 by 4.5: 360 × 4.5 = 1,620.

Question 8Written response · 2 points

Type II Reasoning: Compare Percent Discounts

Store A offers a $120 skateboard at 30% off. Store B offers the same $120 skateboard with a $40 instant manufacturer coupon.

Which store offers the lower final price? Justify your decision by showing the savings and final price at both stores.

Write your answer in complete sentences. Show or explain your mathematical thinking.

Part C — Show Your Thinking

Answer in writing, the way the state test's constructed responses work.

Question 9Written response · 2 points

A class has 32 students. 25% join the math club and 50% join the reading club. How many students are in each club? How many more are in reading?

Write your answer in complete sentences. Show or explain your mathematical thinking.