Colorado CMAS · Math · 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.
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.
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.
3. Test
A 10-question Colorado CMAS Math practice set on geometry and measurement, with answers and explanations.
Read each math task carefully, choose one answer, and review the explanation after responding.
Please select an answer first.
Correct answer: A
The correct answer is 36 square units.
Area is 9 × 4 = 36 square units.
Please select an answer first.
Correct answer: B
The correct answer is 20 units.
Perimeter is 2 × (7 + 3) = 20 units.
Please select an answer first.
Correct answer: C
The correct answer is 90 degrees.
A right angle measures 90 degrees.
Please select an answer first.
Correct answer: D
The correct answer is 200 centimeters.
One meter is 100 centimeters, so 2 meters is 200 centimeters.
Please select an answer first.
Correct answer: A
The correct answer is 24 cubic units.
Volume is length × width × height: 2 × 3 × 4 = 24.
Please select an answer first.
Correct answer: B
The correct answer is Triangle.
A triangle has three sides.
Please select an answer first.
Correct answer: C
The correct answer is 10 units.
The diameter is twice the radius: 2 × 5 = 10 units.
Please select an answer first.
Correct answer: D
The correct answer is Parallel lines.
Parallel lines remain the same distance apart and do not meet.
Please select an answer first.
Correct answer: A
The correct answer is 20 miles.
Five groups of 4 miles equal 20 miles.
Please select an answer first.
Correct answer: B
The correct answer is Kilograms.
A car’s mass is commonly measured in kilograms.
Build foundational reading, math, science, and social studies skills for Grades 1–5.
Review grade-level ELA, math, science, and social studies skills for Grades 6–8.
Explore course and assessment preparation for Grades 9–12.
Use focused study intervals to work through your next practice set.
The page covers supplemental number operations, expressions, equations, geometry, measurement, data, probability, modeling, and problem-solving practice for Grades 3–8.
There are five practice sets with 10 questions each, for 50 questions in total. Each set can be completed separately.
No. These are original supplemental practice questions. Check the latest Colorado Department of Education information for official materials, standards, accommodations, and policies.
