Grade 4 Math: 10 Free Practice Questions

Answer: 9
Step 1: 121 buttons divided among 10 groups (121 ÷ 10) = 12 Step 2: buttons left over after giving every group 12 (121 − 10 × 12) = 1 Step 3: more buttons needed so the leftover group also gets 13 like a full group would need (10 − 1) = 9 Step 4: total extra buttons needed to make every group's share equal (9 × 1, since each missing group needs exactly 1 more) = 9 So the answer is 9 — extra buttons needed.

Answer: 70°
<p><strong>Correct Answer: 70°</strong></p><ol><li>Corresponding angles are equal when parallel lines are cut by a transversal.</li><li>So the corresponding angle is also <span style='background:#bbf7d0;padding:2px 6px;border-radius:4px;font-weight:bold;'>70°</span>.</li></ol><div style='background:#dbeafe;border-left:4px solid #3b82f6;padding:10px 14px;border-radius:6px;margin-top:10px;'><strong>Remember:</strong> Corresponding angles are equal with parallel lines!</div>

Answer: 6/12
Multiplying the numerator and denominator by the same nonzero number produces an equivalent fraction: 2/4 = (2 × 3)/(4 × 3) = 6/12. Adding the same number to the numerator and denominator does not preserve the value.

Answer: green
The bag holds 28 marbles in all. The color with the greatest count is most likely to be drawn. Since green has 10 marbles, more than any other color, green is the most likely outcome.

Answer: 52 R5
Divide: 473 ÷ 9. Since 9 × 52 = 468 and 473 − 468 = 5, the quotient is 52 with a remainder of 5. The remainder 5 is less than the divisor 9, so the division is complete.

Answer: 3/4 meter
The 3/4-meter ribbon is the longest. Rewrite each fraction with a common denominator of 60: 2/3 = 40/60, 3/5 = 36/60, 7/10 = 42/60, and 3/4 = 45/60. Comparing numerators, 45/60 is the greatest, so 3/4 meter is the longest. Students often assume the fraction with the largest numbers (7/10) is greatest without using a common denominator, so they pick 7/10.

Answer: 48 square feet
The L-shaped room has an area of 48 square feet. Find the full rectangle's area: 10 × 6 = 60 square feet. Find the removed corner's area: 3 × 4 = 12 square feet. Subtract: 60 − 12 = 48 square feet. Students forget to subtract the removed corner and report the full rectangle's area of 60 square feet.

Answer: 30,087
<p><strong>Correct Answer: 30,087</strong></p><ol><li>Add new books: 24,560 + 8,745 = 33,305.</li><li>Remove damaged: 33,305 - 3,218 = <span style='background:#bbf7d0;padding:2px 6px;border-radius:4px;font-weight:bold;'>30,087</span>.</li></ol><div style='background:#dbeafe;border-left:4px solid #3b82f6;padding:10px 14px;border-radius:6px;margin-top:10px;'><strong>Remember:</strong> Add increases and subtract decreases step by step!</div>

Answer: 11
The students receive 21 × 7 = 147 beads in all. Subtracting from the starting amount: 158 − 147 = 11 beads left over.

Answer: 165
The greatest value in the table is 418 and the least is 253. The difference is 418 − 253 = 165.