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California CAASPP · Grade 8 · Math

California Grade 8 CAASPP Math Practice Test

Build Grade 8 California CAASPP Math readiness with five focused 10-question practice sets covering number systems, algebra, functions, geometry, statistics, probability, and modeling.

Grade 8 CAASPP Math practice sets

This California Grade 8 CAASPP Math Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets support supplemental review across proportional relationships, rational and irrational numbers, expressions, equations, functions, geometry, statistics, probability, and mathematical modeling.

Math skills covered

  • Proportional relationships, unit rates, irrational numbers, square-root estimates, exponents, scientific notation, rational numbers, and percent change
  • Equivalent expressions, linear equations, equations with different solution sets, functions, slope, inequalities, linear models, and systems
  • Transformations, angle relationships, Pythagorean theorem, circles, volume, surface area, and coordinate geometry
  • Samples, populations, measures of center, variability, probability, compound events, scatter plots, and two-way data
  • Multi-step equations, percent models, scale models, area and volume models, and reasonableness checks

How to use this page

Complete one 10-question set at a time. Show intermediate steps, check signs and units, and review the explanation for every missed or guessed answer.

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

For the broader California assessment hub, visit California State Assessments.

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5 Tests
1. Test2. Test3. Test4. Test5. Test

2. Test

California Grade 8 CAASPP Math Practice Questions

A 10-question California Grade 8 CAASPP Math practice set on expressions, equations, and functions, with answers and explanations.

Read each question 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 expression is equivalent to 3(2x − 5) − 4x?

Please select an answer first.

Correct answer: A

The correct answer is 2x − 15.

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: Distribute 3 to get 6x − 15, then subtract 4x to obtain 2x − 15.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

Distribute 3 to get 6x − 15, then subtract 4x to obtain 2x − 15.

2. QuestionMultiple choice

Solve 4x + 9 = 2x − 7.

Please select an answer first.

Correct answer: B

The correct answer is x = -8.

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: Subtract 2x and 9 to get 2x = -16, then divide by 2 to get x = -8.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

Subtract 2x and 9 to get 2x = -16, then divide by 2 to get x = -8.

3. QuestionMultiple choice

Which equation has infinitely many solutions?

Please select an answer first.

Correct answer: C

The correct answer is 6x + 4 = 6x + 4.

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: Both sides of the first equation are identical, so every value of x makes it true.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

Both sides of the first equation are identical, so every value of x makes it true.

4. QuestionMultiple choice

The function f(x) = 2x − 1. What is f(6)?

Please select an answer first.

Correct answer: D

The correct answer is 11.

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: Substitute 6 for x: f(6) = 2(6) − 1 = 11.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

Substitute 6 for x: f(6) = 2(6) − 1 = 11.

5. QuestionMultiple choice

A line passes through (0, 5) and (2, 11). What is its slope?

Please select an answer first.

Correct answer: A

The correct answer is 3.

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: Slope equals change in y divided by change in x: (11 − 5) ÷ (2 − 0) = 3.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

Slope equals change in y divided by change in x: (11 − 5) ÷ (2 − 0) = 3.

6. QuestionMultiple choice

Which equation represents the line with slope -2 and y-intercept 7?

Please select an answer first.

Correct answer: B

The correct answer is y = -2x + 7.

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: Slope-intercept form is y = mx + b, so m = -2 and b = 7.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

Slope-intercept form is y = mx + b, so m = -2 and b = 7.

7. QuestionMultiple choice

Which relationship is a function?

Please select an answer first.

Correct answer: C

The correct answer is {(1, 4), (2, 5), (3, 5), (4, 8)}.

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: Each input in the first set is paired with exactly one output, even though two inputs can share an output.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

Each input in the first set is paired with exactly one output, even though two inputs can share an output.

8. QuestionMultiple choice

Solve the inequality 3x − 2 ≤ 13.

Please select an answer first.

Correct answer: D

The correct answer is x ≤ 5.

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: Add 2 and divide by 3: 3x ≤ 15, so x ≤ 5.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

Add 2 and divide by 3: 3x ≤ 15, so x ≤ 5.

9. QuestionMultiple choice

A table shows x-values 0, 1, 2 and y-values 4, 9, 14. Which rule fits the table?

Please select an answer first.

Correct answer: A

The correct answer is y = 5x + 4.

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: The y-values increase by 5 and the y-intercept is 4, so the rule is y = 5x + 4.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

The y-values increase by 5 and the y-intercept is 4, so the rule is y = 5x + 4.

10. QuestionMultiple choice

Which pair solves the system x + y = 10 and x − y = 2?

Please select an answer first.

Correct answer: B

The correct answer is (6, 4).

  1. Identify the task: Decide whether the question asks about number systems, expressions, equations, functions, geometry, data, probability, or modeling.
  2. Use the quantities: Adding the equations gives 2x = 12, so x = 6; substituting gives y = 4.
  3. Check the result: Review signs, units, operations, and whether the answer is reasonable in the situation.

Adding the equations gives 2x = 12, so x = 6; substituting gives y = 4.

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Frequently asked questions about California Grade 8 CAASPP Math Practice Test

Which Math skills are covered?

The page covers number systems, proportional relationships, algebra, functions, equations, inequalities, geometry, statistics, probability, and modeling for Grade 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 CAASPP questions?

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