Grade 4 is when California math expectations take a significant step up. Multi-digit multiplication, long division, fraction equivalence, decimal concepts, and angle measurement all appear in Grade 4 for the first time. The CAASPP math assessment tests all of these, often inside multi-step word problems that require students to choose operations, not just apply them.
This post gives you 30 practice problems across Grade 4’s most-tested areas, organized by topic, with full answer explanations below each section.
Grade 4 CAASPP Math: Core Topics
Based on the California Common Core State Standards for Grade 4, the highest-priority test topics are:
- Multi-digit multiplication and division
- Fraction equivalence, comparison, addition, and subtraction
- Decimal notation for fractions
- Place value and rounding to any place
- Angles, lines, and 2D shape classification
- Measurement conversions within the same system
- Line plots with fractional data
Section 1: Multi-Digit Multiplication (6 Problems)
1. 34 × 6 = ?
Answer: 204. (30 × 6 = 180; 4 × 6 = 24; 180 + 24 = 204)
2. 47 × 23 = ?
Answer: 1,081. (47 × 20 = 940; 47 × 3 = 141; 940 + 141 = 1,081)
3. A school buys 18 boxes of crayons. Each box has 64 crayons. How many crayons total?
Answer: 18 × 64 = 1,152 crayons. (18 × 60 = 1,080; 18 × 4 = 72; 1,080 + 72 = 1,152)
4. 246 × 3 = ?
Answer: 738. (200 × 3 = 600; 40 × 3 = 120; 6 × 3 = 18; total = 738)
5. 315 × 12 = ?
Answer: 3,780. (315 × 10 = 3,150; 315 × 2 = 630; 3,150 + 630 = 3,780)
6. A farmer plants 24 rows of corn with 32 plants in each row. How many plants are there in all?
Answer: 24 × 32 = 768 plants.
Section 2: Fractions — Equivalence and Comparison (6 Problems)
7. Write a fraction equivalent to 2/3 using 12 as the denominator.
Answer: 8/12. (2/3 = 8/12 because 3 × 4 = 12 and 2 × 4 = 8)
8. Which is larger: 3/4 or 5/8?
Answer: 3/4. (3/4 = 6/8; 6/8 > 5/8)
9. 3/5 + 1/5 = ?
Answer: 4/5. (When denominators are the same, add numerators: 3 + 1 = 4)
10. 7/8 − 3/8 = ?
Answer: 4/8 = 1/2.
11. A pizza is cut into 8 equal slices. If 3/8 of the pizza has been eaten, what fraction remains?
Answer: 5/8. (8/8 − 3/8 = 5/8)
12. Shade a number line to show the fraction 3/4. Between which two whole numbers does it fall?
Answer: Between 0 and 1. The point is three-fourths of the way from 0 to 1.
Section 3: Decimal Notation (4 Problems)
13. Write the decimal for 7/10.
Answer: 0.7
14. Write the decimal for 34/100.
Answer: 0.34
15. Which is greater: 0.6 or 0.60?
Answer: They are equal. 0.6 = 6/10 = 60/100 = 0.60
16. Order from least to greatest: 0.7, 0.07, 0.70.
Answer: 0.07, 0.7 (= 0.70). All three together: 0.07, 0.70, 0.70 — but since 0.7 = 0.70, the answer is: 0.07 < 0.70 = 0.7
Section 4: Place Value and Rounding (4 Problems)
17. What is 3,748 rounded to the nearest hundred?
Answer: 3,700. (The tens digit is 4, so round down.)
18. What is the value of the digit 6 in 46,281?
Answer: 6,000. (The 6 is in the thousands place.)
19. A town has a population of 52,364. Round to the nearest thousand.
Answer: 52,000.
20. Write 20,000 + 4,000 + 300 + 7 in standard form.
Answer: 24,307
Section 5: Measurement Conversions (4 Problems)
21. 3 feet = ? inches
Answer: 36 inches. (1 foot = 12 inches; 3 × 12 = 36)
22. 2 pounds = ? ounces
Answer: 32 ounces. (1 pound = 16 ounces; 2 × 16 = 32)
23. 4 liters = ? milliliters
Answer: 4,000 milliliters. (1 liter = 1,000 mL)
24. A garden is 5 meters long. How many centimeters is that?
Answer: 500 centimeters. (1 meter = 100 cm; 5 × 100 = 500)
Section 6: Angles and Geometry (6 Problems)
25. What type of angle is 90°?
Answer: Right angle.
26. An angle measures 135°. Is it acute, right, or obtuse?
Answer: Obtuse. (Greater than 90° and less than 180°)
27. A shape has 4 right angles and 4 equal sides. What is it?
Answer: A square.
28. How many lines of symmetry does a regular hexagon have?
Answer: 6 lines of symmetry.
29. What is the perimeter of a rectangle with a length of 8 cm and a width of 5 cm?
Answer: P = 2(8 + 5) = 2(13) = 26 cm.
30. An angle starts at 30° and is turned another 45°. What is the total measure?
Answer: 30 + 45 = 75°. This is an acute angle.
What to Do With Your Results
After completing these problems, sort your answers by section. If you missed more than 2 problems in any section, that topic deserves focused review time before the CAASPP test. Each section above maps directly to a Grade 4 California Common Core cluster, so you can connect your results to a specific area of study.
California Grade 4 CAASPP Math Books from ViewMath
ViewMath offers a full set of California-specific Grade 4 math prep books aligned to the CA CCSS. Our books include complete study guides, workbooks with hundreds of practice problems, and full-length practice tests with answer explanations. Browse the Grade 4 California collection using the sidebar.
ViewMath is an independent publisher. Our books are not official CAASPP or Smarter Balanced materials.
