CMAS Grade 3 math practice should feel steady, clear, and confidence-building. Third graders are still building fluency, so the best preparation is not a pile of long tests. It is a short cycle of review, practice, correction, and another try.
The Colorado Department of Education explains that CMAS is based on the Colorado Academic Standards and that students in grades 3 through 8 take the grade-level math assessment for their enrolled grade. CDE also lists the 2026 CMAS window for ELA, math, science, and social studies as April 6 through 24. Always confirm dates with your school, because local schedules vary within the state window.
ViewMath is an independent publisher and is not affiliated with or endorsed by the Colorado Department of Education, Pearson, or CMAS. For official information, visit the CDE CMAS page.
Grade 3 CMAS Math Topics to Review
- Multiplication and division: facts, equal groups, arrays, and word problems.
- Fractions: unit fractions, fractions on a number line, and equivalent fractions with visual models.
- Place value: rounding, comparing numbers, and multi-digit addition and subtraction.
- Measurement: time, money, length, mass, volume, and simple data displays.
- Geometry: shapes, attributes, area, perimeter, and partitioning shapes.
- Problem solving: two-step word problems and explaining what the numbers mean.
Mini Practice Test
1. What is 7 x 8?
2. There are 36 pencils shared equally among 4 students. How many pencils does each student get?
3. Round 486 to the nearest hundred.
4. Compute 352 + 279.
5. A rectangle has length 9 units and width 4 units. What is the area?
6. Which fraction is larger: 1/3 or 1/6?
7. A class starts reading at 10:20 and stops at 10:45. How many minutes did they read?
8. A bar graph shows 12 students chose apples, 9 chose bananas, and 6 chose oranges. How many students chose apples or bananas?
9. Write a division equation for 5 groups of 6 making 30 total objects.
10. A shape has 4 equal sides and 4 right angles. What is one possible name for the shape?
Answer Key and Teaching Notes
1. 56. If this is slow, practice related facts: 7 x 4 = 28, so 7 x 8 is double 28.
2. 9 pencils. Division equation: 36 / 4 = 9.
3. 500, because 486 is closer to 500 than 400.
4. 631. Regroup ones and tens carefully.
5. 36 square units, because area = length x width.
6. 1/3 is larger. With the same whole, thirds are larger parts than sixths.
7. 25 minutes.
8. 21 students.
9. 30 / 5 = 6 or 30 / 6 = 5, depending on which group size is unknown.
10. Square is one possible answer.
How to Score the Practice Test
Do not only count correct answers. Sort missed questions into groups. Misses on 1, 2, and 9 point to multiplication and division facts. Misses on 3 and 4 point to place value and regrouping. Misses on 5 and 10 point to geometry vocabulary. Misses on 6 point to fraction size and visual models. Misses on 7 and 8 point to measurement and data interpretation.
After scoring, choose the two weakest groups and make a short retake. Five focused problems are more useful than twenty unrelated problems.
Two-Week Review Plan
| Day | Focus | Practice |
|---|---|---|
| 1 | Diagnostic | Mini practice test and error sort |
| 2 | Multiplication facts | Arrays and fact-family practice |
| 3 | Division facts | Equal groups and missing-factor problems |
| 4 | Place value | Rounding and addition/subtraction |
| 5 | Fractions | Number line and area models |
| 6 | Measurement | Elapsed time, money, and data |
| 7 | Geometry | Area, perimeter, and shape attributes |
| 8 | Mixed retake | New 10-question set |
How to Keep Grade 3 Practice Age-Appropriate
Third graders do best with short, concrete practice. Ten focused problems with drawings, counters, number lines, or arrays can be more effective than a long worksheet. If a student misses a multiplication or division problem, ask them to draw equal groups. If they miss a fraction problem, draw the same-size whole first so the comparison is fair.
Use oral explanations often. A strong Grade 3 explanation might be simple: “I know 36 divided by 4 is 9 because 4 groups of 9 make 36.” That sentence shows the student is connecting division and multiplication rather than guessing.
Parent and Teacher Checklist
- Practice math facts for 5 minutes at a time, not 30 minutes at once.
- Use arrays for multiplication and division.
- Use number lines for rounding and fractions.
- Ask students to label answers with units in word problems.
- Review mistakes the same day, while the thinking is still fresh.
When to Move to a Full Practice Test
A full practice test makes sense after the student can handle short mixed sets without shutting down. For many third graders, that means starting with 8 to 10 questions, correcting them, and trying a similar set later in the week. Once the student can explain mistakes and keep work organized, a longer practice test can help with stamina.
If the student guesses often, return to models first. Arrays, number lines, clocks, coins, and fraction strips help young students connect the symbols to real quantities.
ViewMath Colorado Grade 3 Resources
For students who need a structured path, browse ViewMath Colorado CMAS Grade 3 Math. Use a study guide for reteaching, a workbook for daily practice, quizzes for quick checkpoints, and practice tests when the student is ready for mixed review.
The practice questions in this article are original review items and are not official CMAS questions.
