Colorado CMAS · Math · Grades 3–8

Colorado CMAS Math Practice Test: Grades 3–8

Build CMAS Math readiness with five focused 10-question practice sets covering number operations, expressions, equations, geometry, measurement, data, probability, and problem solving.

CMAS Math practice sets

This Colorado CMAS Math Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets offer supplemental practice for Grades 3–8 across number operations, expressions, equations, geometry, measurement, data, probability, modeling, and problem solving.

Math skills covered

  • Addition, subtraction, multiplication, division, equivalent fractions, decimals, place value, groups, rounding, and fractions of numbers
  • Patterns, equations, expressions, proportional relationships, decreasing patterns, equal groups, rules, number properties, sequences, and substitution
  • Area, perimeter, angles, metric conversions, volume, polygons, circles, parallel lines, scale, and measurement units
  • Mean, median, mode, probability, data totals, bar graphs, probability fractions, range, line graphs, and possible outcomes
  • Money, measurement, elapsed time, distance, repeated groups, sharing, and multi-step word problems

How to use this page

Complete one 10-question set at a time. Identify the quantities and operation, 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.

4. Test

Colorado CMAS Math Practice Questions

A 10-question Colorado CMAS Math practice set on data, statistics, and probability, 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

What is the mean of 4, 6, and 8?

Please select an answer first.

Correct answer: A

The correct answer is 6.

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: The sum is 18 and 18 ÷ 3 = 6.
  3. Check the result: Make sure the answer is reasonable and matches the question.

The sum is 18 and 18 ÷ 3 = 6.

2. QuestionMultiple choice

What is the median of 3, 7, 9, 12, and 15?

Please select an answer first.

Correct answer: B

The correct answer is 9.

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: The middle value in the ordered list is 9.
  3. Check the result: Make sure the answer is reasonable and matches the question.

The middle value in the ordered list is 9.

3. QuestionMultiple choice

What is the mode of 2, 5, 5, 6, and 8?

Please select an answer first.

Correct answer: C

The correct answer is 5.

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: The mode is the value that appears most often: 5.
  3. Check the result: Make sure the answer is reasonable and matches the question.

The mode is the value that appears most often: 5.

4. QuestionMultiple choice

A bag has 2 green balls and 6 yellow balls. Which color is more likely to be selected?

Please select an answer first.

Correct answer: D

The correct answer is Yellow.

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: There are more yellow balls, so yellow is more likely.
  3. Check the result: Make sure the answer is reasonable and matches the question.

There are more yellow balls, so yellow is more likely.

5. QuestionMultiple choice

A chart shows 12 students chose soccer and 8 chose basketball. How many students chose one of the two sports?

Please select an answer first.

Correct answer: A

The correct answer is 20.

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: Adding 12 and 8 gives 20 students.
  3. Check the result: Make sure the answer is reasonable and matches the question.

Adding 12 and 8 gives 20 students.

6. QuestionMultiple choice

A bar graph has its tallest bar on Friday. What does this show?

Please select an answer first.

Correct answer: B

The correct answer is Friday has the greatest recorded value..

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: The tallest bar represents the largest value.
  3. Check the result: Make sure the answer is reasonable and matches the question.

The tallest bar represents the largest value.

7. QuestionMultiple choice

A spinner has 5 equal sections and 1 section is blue. What is the probability of blue?

Please select an answer first.

Correct answer: C

The correct answer is 1/5.

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: One of five equal sections is blue.
  3. Check the result: Make sure the answer is reasonable and matches the question.

One of five equal sections is blue.

8. QuestionMultiple choice

What is the range of 8, 11, 14, and 20?

Please select an answer first.

Correct answer: D

The correct answer is 12.

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: Range is largest minus smallest: 20 − 8 = 12.
  3. Check the result: Make sure the answer is reasonable and matches the question.

Range is largest minus smallest: 20 − 8 = 12.

9. QuestionMultiple choice

A line graph rises from Monday to Wednesday. What does this show?

Please select an answer first.

Correct answer: A

The correct answer is The measured value increased..

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: An upward line shows increasing values.
  3. Check the result: Make sure the answer is reasonable and matches the question.

An upward line shows increasing values.

10. QuestionMultiple choice

A coin is flipped once. Which result is possible?

Please select an answer first.

Correct answer: B

The correct answer is Tails.

  1. Understand the quantities: Identify the numbers, units, operation, or relationship in the task.
  2. Solve using evidence: A single coin flip can result in heads or tails.
  3. Check the result: Make sure the answer is reasonable and matches the question.

A single coin flip can result in heads or tails.

Choose your next study path

Frequently asked questions about Colorado CMAS Math Practice Test

Which Math skills are covered?

The page covers supplemental number operations, expressions, equations, geometry, measurement, data, probability, modeling, and problem-solving practice for Grades 3–8.

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 Math questions?

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