MSTAR Practice Worksheet

Lesson 3-6: Ratio Reasoning: Convert Measurements within the Same System

Grade 6 Mathematics · Standard 6.AT.3c

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

There are 12 inches in 1 foot. How many inches are in 5 feet?

A7 inches
B17 inches
C50 inches
D60 inches

Question 2Selected response · 1 point

There are 1,000 milliliters in 1 liter. How many milliliters are in 3 liters?

A30 mL
B300 mL
C1,003 mL
D3,000 mL

Question 3Selected response · 1 point

There are 16 ounces in 1 pound. How many pounds is 48 ounces?

A3 pounds
B32 pounds
C64 pounds
D768 pounds

Question 4Selected response · 1 point

A child is 4 feet tall. A ride requires 44 inches. Can the child ride?

ANo, because 4 is less than 44
BYes, because 4 feet = 44 inches exactly
CYes, because 4 feet = 48 inches, which is more than 44
DYou cannot compare feet and inches

Question 5Selected response · 1 point

Diamond needs 4 liters of water. Her bottle holds 500 milliliters. How many times must she fill it?

A2 times
B4 times
C8 times
D40 times

Question 6Selected response · 1 point

Chef Reyes's stock order lists 3 quarts of broth, but her measuring cup is marked in cups. There are 4 cups in 1 quart. How many cups of broth is that?

A7 cups
B0.75 cup
C12 cups
D3 cups

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

A rope measures 7 feet. Using 1 foot = 12 inches, how long is the rope in inches?

Fill in the bubble next to the one best answer.

A0.58 inches
B7 inches
C19 inches
D84 inches

Part B

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

How do you know the answer to Part A should be a LARGER number than 7?

AConverting always makes numbers larger.
BMultiplying always makes numbers larger.
CAn inch is smaller than a foot, so it takes more inches to measure the same length.
DFeet and inches are in different systems.

Question 8Written response · 2 points

Type II Reasoning: Converting the Wrong Direction

Tariq converted 240 centimeters to meters. Knowing 1 meter = 100 centimeters, he wrote: '240 × 100 = 24,000 meters.'

Explain Tariq's misconception and give the correct conversion.

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

Michael's mother is setting four fence posts. Each post needs 250 ounces of concrete mix, one bag holds 80 ounces, and each bag needs 1 quart of water. How many bags and how many cups of water does she need? Show your conversions.

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