MSTAR Practice Worksheet

Lesson 3-2: Understand Rates and Unit Rates

Grade 6 Mathematics · Standard 6.AT.2

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

A booth charges $4.50 for 9 games. What is the unit rate?

A$0.45 per game
B$0.50 per game
C$2.00 per game
D$4.50 per game

Question 2Selected response · 1 point

A car travels 180 miles using 6 gallons of gas. What is the unit rate in miles per gallon?

A6 miles per gallon
B30 miles per gallon
C36 miles per gallon
D180 miles per gallon

Question 3Selected response · 1 point

A pack of 8 markers costs $6.00. What is the cost per marker?

A$0.60
B$0.75
C$0.80
D$1.33

Question 4Selected response · 1 point

Which is a unit rate?

A12 miles per 1 hour
B24 miles in 2 hours
C36 miles for 3 gallons
D100 points in 5 games

Question 5Selected response · 1 point

Token packs: Pack A is 20 tokens for $5.00, Pack B is 35 tokens for $7.00, and Pack C is 50 tokens for $12.50. Which pack is the best deal per token?

APack B
BPack A
CPack C
DThey are all the same

Question 6Selected response · 1 point

Runner A completes 4 laps in 12 minutes. Runner B completes 5 laps in 14 minutes. Who runs more laps per minute?

ARunner B
BRunner A
CSame rate
DCannot determine

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

Booth A charges $3 for 5 games. What is the unit rate in dollars per game?

Fill in the bubble next to the one best answer.

A$0.30 per game
B$0.60 per game
C$1.67 per game
D$15.00 per game

Part B

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

Booth B charges $5 for 8 games. Which booth is the better deal, and why?

ABooth B, because $5 buys more games than $3.
BBooth A, because 3 is less than 5.
CThey are equal, because both ratios simplify to the same value.
DBooth A, because $0.60 per game is less than $0.625 per game.

Question 8Written response · 2 points

Type II Reasoning: Dividing the Wrong Way

Marisol wanted the cost per pound of apples. The sign read '4 pounds for $6.' She wrote: 'Unit rate = 4 ÷ 6 = about $0.67 per pound.'

Explain Marisol's misconception and give the correct unit rate.

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

An arcade sells tokens in three packs: 25 tokens for $5, 60 tokens for $10.80, and 100 tokens for $19. A student says the 100-token pack is always the best deal because you get the most tokens. Is the student correct? Find all three unit rates and explain.

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