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Colorado CMAS · Math · Grade 4

Colorado CMAS Grade 4 Math Practice Test

Build Grade 4 Math readiness with five focused 10-question practice sets covering multi-digit operations, multiplication, fractions, decimals, measurement, data, and geometry.

Grade 4 Math practice sets

This Colorado CMAS Grade 4 Math Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets offer supplemental practice across place value, operations, multiplication, division, fractions, decimals, measurement, data, area, and geometry.

Math skills covered

  • Place value, comparing numbers, expanded form, rounding, multi-digit addition, subtraction, and word problems
  • Multiplication, division, factors, multiples, remainders, distributive property, and multi-step computation
  • Equivalent fractions, comparing fractions, fraction-decimal relationships, decimal addition, and benchmark fractions
  • Measurement conversions, elapsed time, mass, perimeter, line plots, bar graphs, capacity, money, and equal groups
  • Quadrilaterals, area, angle types, parallel lines, arrays, multiplication reasoning, and inverse operations

How to use this page

Complete one 10-question set at a time. Identify the operation or model, solve carefully, and review every explanation before moving to the next set.

This is supplemental State Test Practice, State Assessment Practice, and Standardized Test Practice. It does not replace current Colorado Department of Education guidance, official CMAS blueprints, accommodations, or testing policies.

For the Colorado assessment hub, visit Colorado State Assessments.

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Colorado CMAS Grade 4 Math Practice Questions

A 10-question Colorado CMAS Grade 4 Math practice set on fractions and decimals, with answers and explanations.

Read each math task carefully, choose one answer, and review the explanation after responding.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

Which fraction is equivalent to 1/2?

Please select an answer first.

Correct answer: A

The correct answer is 4/8.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: Multiplying numerator and denominator of 1/2 by 4 gives 4/8.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

Multiplying numerator and denominator of 1/2 by 4 gives 4/8.

2. QuestionMultiple choice

Which fraction is greatest?

Please select an answer first.

Correct answer: B

The correct answer is 5/8.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: With the same denominator, 5 eighths is the greatest.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

With the same denominator, 5 eighths is the greatest.

3. QuestionMultiple choice

What is 3/4 written as a decimal?

Please select an answer first.

Correct answer: C

The correct answer is 0.75.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: Three fourths equals seventy-five hundredths, or 0.75.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

Three fourths equals seventy-five hundredths, or 0.75.

4. QuestionMultiple choice

Which decimal is equal to 6/10?

Please select an answer first.

Correct answer: D

The correct answer is 0.6.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: Six tenths is written as 0.6.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

Six tenths is written as 0.6.

5. QuestionMultiple choice

What is 2/3 + 1/3?

Please select an answer first.

Correct answer: A

The correct answer is 1.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: The denominators match, so 2 thirds plus 1 third equals 3 thirds, or 1.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

The denominators match, so 2 thirds plus 1 third equals 3 thirds, or 1.

6. QuestionMultiple choice

Which comparison is true?

Please select an answer first.

Correct answer: B

The correct answer is 0.8 > 0.65.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: Eight tenths is greater than sixty-five hundredths.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

Eight tenths is greater than sixty-five hundredths.

7. QuestionMultiple choice

A pizza is divided into 8 equal slices. What fraction represents 5 slices?

Please select an answer first.

Correct answer: C

The correct answer is 5/8.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: Five of eight equal slices are represented by 5/8.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

Five of eight equal slices are represented by 5/8.

8. QuestionMultiple choice

What is 1 1/4 written as a decimal?

Please select an answer first.

Correct answer: D

The correct answer is 1.25.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: One and one fourth equals one and twenty-five hundredths, or 1.25.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

One and one fourth equals one and twenty-five hundredths, or 1.25.

9. QuestionMultiple choice

Which fraction is closest to 1?

Please select an answer first.

Correct answer: A

The correct answer is 7/8.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: Seven eighths is only one eighth away from one.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

Seven eighths is only one eighth away from one.

10. QuestionMultiple choice

A ribbon is 2.5 meters long. Another ribbon is 1.25 meters long. How much ribbon is there in all?

Please select an answer first.

Correct answer: B

The correct answer is 3.75 meters.

  1. Read the math task: Identify the quantities, operation, fraction, decimal, measurement, or shape relationship in the question.
  2. Show the reasoning: Add the decimals: 2.50 + 1.25 = 3.75 meters.
  3. Check the answer: Choose the option that matches the calculation, model, or mathematical definition.

Add the decimals: 2.50 + 1.25 = 3.75 meters.

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Frequently asked questions about Colorado CMAS Grade 4 Math Practice Test

Which Grade 4 Math skills are covered?

The page covers multi-digit operations, multiplication, division, fractions, decimals, measurement, data, area, geometry, and mathematical reasoning.

How many questions are included?

There are five practice sets with 10 questions each, for 50 questions in total. Each set can be completed separately.

Are these official CMAS questions?

No. These are original supplemental practice questions. Check the latest Colorado Department of Education information for official materials, standards, accommodations, and policies.