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Archive · November 1, 2026

Grade 4 Math: 10 Free Practice Questions

A brand-new set of Grade 4 math practice questions every single day, with the answer and a full explanation for each one. No account, no paywall — tap an answer to check it.

1A jar contains exactly 10 blue, 9 orange, 5 green, 2 purple marbles and no others. One marble is drawn at random. Which fraction represents the chance that the marble drawn is orange?

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Answer: 9/26
The jar holds 26 marbles in all, of which 9 are orange. The chance is the part out of the whole: 9/26.

2The table shows the number of crayons four students collected: Ravi, 60; Carlos, 207; Grace, 62; Ivy, 307. What is the total number of crayons for all four students combined?

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Answer: 636
Add all four values: 60 + 207 + 62 + 307 = 636.

3Which prime number is between 20 and 25?

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Answer: 23
21, 22 and 24 are composite; 23 is prime.

4Look at the line plot titled "Hours of Reading per Week". What is the MEDIAN of the data shown?

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Answer: 5.0
<p><strong>CORRECT ANSWER: 5.0</strong></p><ol><li>List all reading hours from dots in order.</li><li>Find the middle value.</li><li>The median is <span style='background:#bbf7d0;padding:2px 6px;border-radius:4px;font-weight:bold;'>5.0</span>.</li></ol><div style='background:#dbeafe;border-left:4px solid #3b82f6;padding:10px 14px;border-radius:6px;margin-top:10px;'><strong>Remember:</strong> Median is middle when ordered!</div>

5How many minutes are in 1/2 hour?

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Answer: 30
<p><strong>Correct Answer: 30</strong></p><ol><li>1 hour = 60 minutes.</li><li>1/2 hour = <span style='background:#bbf7d0;padding:2px 6px;border-radius:4px;font-weight:bold;'>30 minutes</span>.</li></ol><div style='background:#dbeafe;border-left:4px solid #3b82f6;padding:10px 14px;border-radius:6px;margin-top:10px;'><strong>Remember:</strong> Half of 60 minutes is 30 minutes!</div>

6Look at the pictograph titled "Goals Scored". Each icon stands for 3. What is the TOTAL across all categories?

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Answer: 57
<p><strong>CORRECT ANSWER: 57</strong></p><ol><li>Find value for each team (icons × 3).</li><li>Add all values.</li><li>Total is <span style='background:#bbf7d0;padding:2px 6px;border-radius:4px;font-weight:bold;'>57</span>.</li></ol><div style='background:#dbeafe;border-left:4px solid #3b82f6;padding:10px 14px;border-radius:6px;margin-top:10px;'><strong>Remember:</strong> Convert icons first then add!</div>

7An input-output table follows a rule. The rule is: output = input × 6 − 2. Input: 3 → Output: ? Input: 5 → Output: ? Input: ? → Output: 40 What are the three missing values?

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Answer: 16, 28, 7
<p><strong>Correct Answer: 16, 28, 7</strong></p><ol><li>For input 3: 3×6-2=16.</li><li>For input 5: 5×6-2=28.</li><li>For output 40: work backwards to input 7.</li></ol><div style='background:#dbeafe;border-left:4px solid #3b82f6;padding:10px 14px;border-radius:6px;margin-top:10px;'><strong>Remember:</strong> Apply the rule to each row or work backwards using inverse operations!</div>

8The area of Square A is 64 cm². Square B has a side length that is double that of Square A. What is the difference in their perimeters?

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Answer: 32 cm
<p><strong>Correct Answer: 32 cm</strong></p><ol><li><strong>Square A:</strong> Area = 64 cm². Side = √64 = <span style='background:#fef08a; padding:2px 6px; border-radius:4px; font-weight:bold;'>8 cm</span> (because 8 × 8 = 64). Perimeter = 4 × 8 = <strong>32 cm</strong>.</li><li><strong>Square B:</strong> Side = double A's side = 2 × 8 = <span style='background:#fef08a; padding:2px 6px; border-radius:4px; font-weight:bold;'>16 cm</span>. Perimeter = 4 × 16 = <strong>64 cm</strong>.</li><li><strong>Difference:</strong> 64 − 32 = <span style='background:#bbf7d0; padding:2px 6px; border-radius:4px; font-weight:bold;'>32 cm</span>.</li><li>Cool fact: when you double the side, the perimeter also doubles (32 → 64), but the area quadruples (64 → 256)!</li></ol><div style='background:#dbeafe; border-left:4px solid #3b82f6; padding:10px 14px; border-radius:6px; margin-top:10px;'><strong>Remember:</strong> To find the side of a square from its area, ask: what number times itself equals the area?</div>

9What is 0.3 written as a fraction?

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Answer: 3/10
0.3 means 3 out of 10 equal parts.

10Which of these has no endpoints?

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Answer: a line
A line matches the description given in the question.

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