Long division

Use the formal written method to divide 3- and 4-digit numbers by 1- and 2-digit numbers

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1
What is 156 ÷ 12? A) 12 B) 13 C) 14 D) 15
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2
Calculate: 96 ÷ 8 = ___ 96 ÷ 8 = ___
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3
Is this statement true or false? 144 ÷ 12 = 12. A) True B) False
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4
What is 84 ÷ 7? A) 11 B) 12 C) 13 D) 14
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5
Calculate: 432 ÷ 12 = ___ 432 ÷ 12 = ___
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6
What is 540 ÷ 15? A) 32 B) 34 C) 36 D) 38
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7
Put the steps in order for calculating 252 ÷ 12 by long division. Put these in order: Ask: how many 12s in 25? Answer: 2 (2 × 12 = 24), Subtract 24 from 25 to get a remainder of 1, Bring down the next digit (2) to make 12, Ask: how many 12s in 12? Answer: 1. Final answer: 21
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8
Calculate: 864 ÷ 24 = ___ 864 ÷ 24 = ___
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9
What is 1248 ÷ 16? A) 68 B) 72 C) 78 D) 82
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10
Is this statement true or false? 375 ÷ 15 = 25. A) True B) False
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Answer key

Long division · for parents and teachers

1
13
12 × 13 = 156, so 156 ÷ 12 = 13.
2
12
8 × 12 = 96, so 96 ÷ 8 = 12.
3
True
12 × 12 = 144, so 144 ÷ 12 = 12. The statement is true.
4
12
7 × 12 = 84, so 84 ÷ 7 = 12.
5
36
12 × 36 = 432 (since 12 × 30 = 360 and 12 × 6 = 72, and 360 + 72 = 432).
6
36
15 × 36 = 540 (since 15 × 30 = 450 and 15 × 6 = 90, and 450 + 90 = 540).
7
Ask: how many 12s in 25? Answer: 2 (2 × 12 = 24), Subtract 24 from 25 to get a remainder of 1, Bring down the next digit (2) to make 12, Ask: how many 12s in 12? Answer: 1. Final answer: 21
Long division: 25 ÷ 12 = 2 r1, bring down 2 to make 12, 12 ÷ 12 = 1. Answer is 21. Check: 12 × 21 = 252.
8
36
24 × 36 = 864 (24 × 30 = 720 and 24 × 6 = 144, total 864).
9
78
16 × 78 = 1248 (16 × 70 = 1120 and 16 × 8 = 128, total 1248).
10
True
15 × 25 = 375, so 375 ÷ 15 = 25. The statement is true.