Fourth graders rewrite three division statements that look right but aren't — like 132 / 6 = 23 and 245 / 7 = 36 — by checking each one with multiplication. Part B has them solve clean problems such as 144 / 8, 216 / 9, and 294 / 7, then verify 153 / 9 = 17 by computing 9 x 17.
Two short-answer prompts ask students to check 246 / 6 = 41 with multiplication and judge whether 200 / 8 = 26 is reasonable. Working backward from quotient to dividend turns the divide-multiply-subtract cycle into a self-checking habit, not just a sequence of steps.
Style:
Long Division
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
132 ÷ 6 = 23 because 6 × 23 = 132.
Rewrite: 132 ÷ 6 = 22 because 6 × 22 = 132.
2. Fix the sentence:
245 ÷ 7 = 36 because 7 × 36 = 252.
Rewrite: 245 ÷ 7 = 35 because 7 × 35 = 245.
3. Fix the sentence:
91 ÷ 3 = 31 because 3 × 31 = 93.
Rewrite: 93 ÷ 3 = 31 because 3 × 31 = 93, but 91 ÷ 3 = 30 R1.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 144 ÷ 8 = 18
2. 216 ÷ 9 = 24
3. 294 ÷ 7 = 42
4. To check 153 ÷ 9 = 17, multiply 9 × 17 = 153
Part C: Short Answer
Answer each question in one or two complete sentences.
1. You divide 246 by 6 and get 41. Show how to check this answer using multiplication.
Multiply 6 × 41 = 246. Since 246 equals the dividend, the answer is correct.
2. A student says 200 ÷ 8 = 26. Is this correct? Explain how you know.
No. 8 × 26 = 208, not 200. The correct answer is 200 ÷ 8 = 25 because 8 × 25 = 200.
Long Division
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
132 ÷ 6 = 23 because 6 × 23 = 132.
Rewrite: 132 ÷ 6 = 22 because 6 × 22 = 132.
2) Fix the sentence:
245 ÷ 7 = 36 because 7 × 36 = 252.
Rewrite: 245 ÷ 7 = 35 because 7 × 35 = 245.
3) Fix the sentence:
91 ÷ 3 = 31 because 3 × 31 = 93.
Rewrite: 93 ÷ 3 = 31 because 3 × 31 = 93, but 91 ÷ 3 = 30 R1.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) 144 ÷ 8 = 18
2) 216 ÷ 9 = 24
3) 294 ÷ 7 = 42
4) To check 153 ÷ 9 = 17, multiply 9 × 17 = 153
★ Part C: Short Answer
Answer each question in one or two complete sentences.
1) You divide 246 by 6 and get 41. Show how to check this answer using multiplication.
Multiply 6 × 41 = 246. Since 246 equals the dividend, the answer is correct.
2) A student says 200 ÷ 8 = 26. Is this correct? Explain how you know.
No. 8 × 26 = 208, not 200. The correct answer is 200 ÷ 8 = 25 because 8 × 25 = 200.
Ready to Practice?
Complete each section carefully.
9 Questions
15-20 minutes
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