Students correct three regrouping errors — 246 × 3 = 638, 1,523 × 4 = 6,082, and 385 × 7 = 2,595. Part B has three fill-in-the-blank multiplication problems: 312 × 3, 1,204 × 5, and 463 × 2. Part C has two short-answer questions about multiplying 258 × 4 step by step and a farmer planting seeds in rows.
Correcting carry errors alongside solving problems builds both the procedure and the habit of checking place-by-place.
Style:
Multi-Digit Multiplication
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
246 × 3 = 638 because 6 × 3 = 18, carry the 1, then 4 × 3 = 12 plus 1 = 13, carry the 1, then 2 × 3 = 6 plus 1 = 7.
Rewrite: 246 × 3 = 738 because 6 × 3 = 18, write 8 carry 1, then 4 × 3 = 12 plus 1 = 13, write 3 carry 1, then 2 × 3 = 6 plus 1 = 7.
2. Fix the sentence:
1,523 × 4 = 6,082 because 3 × 4 = 12, carry the 1, then 2 × 4 = 8 plus 1 = 9.
Rewrite: 1,523 × 4 = 6,092 because 3 × 4 = 12, write 2 carry 1, then 2 × 4 = 8 plus 1 = 9, write 9.
3. Fix the sentence:
385 × 7 = 2,595 because 5 × 7 = 35, carry the 3, then 8 × 7 = 56 plus 3 = 59, carry the 5, then 3 × 7 = 21 plus 5 = 26.
Rewrite: 385 × 7 = 2,695 because 5 × 7 = 35, write 5 carry 3, then 8 × 7 = 56 plus 3 = 59, write 9 carry 5, then 3 × 7 = 21 plus 5 = 26.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 312 × 3 = 936
2. 1,204 × 5 = 6,020
3. 463 × 2 = 926
4. To multiply 700 × 8, first find 7 × 8 = 56, then write 2 zeros.
Part C: Short Answer
Answer each question in one or two complete sentences.
1. Explain step by step how to multiply 258 × 4.
Multiply 8 × 4 = 32, write 2 carry 3. Then 5 × 4 = 20 plus 3 = 23, write 3 carry 2. Then 2 × 4 = 8 plus 2 = 10. The answer is 1,032.
2. A farmer plants 215 seeds in each row and has 6 rows. How many seeds does the farmer plant in all?
215 × 6 = 1,290. The farmer plants 1,290 seeds in all.
Multi-Digit Multiplication
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
246 × 3 = 638 because 6 × 3 = 18, carry the 1, then 4 × 3 = 12 plus 1 = 13, carry the 1, then 2 × 3 = 6 plus 1 = 7.
Rewrite: 246 × 3 = 738 because 6 × 3 = 18, write 8 carry 1, then 4 × 3 = 12 plus 1 = 13, write 3 carry 1, then 2 × 3 = 6 plus 1 = 7.
2) Fix the sentence:
1,523 × 4 = 6,082 because 3 × 4 = 12, carry the 1, then 2 × 4 = 8 plus 1 = 9.
Rewrite: 1,523 × 4 = 6,092 because 3 × 4 = 12, write 2 carry 1, then 2 × 4 = 8 plus 1 = 9, write 9.
3) Fix the sentence:
385 × 7 = 2,595 because 5 × 7 = 35, carry the 3, then 8 × 7 = 56 plus 3 = 59, carry the 5, then 3 × 7 = 21 plus 5 = 26.
Rewrite: 385 × 7 = 2,695 because 5 × 7 = 35, write 5 carry 3, then 8 × 7 = 56 plus 3 = 59, write 9 carry 5, then 3 × 7 = 21 plus 5 = 26.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) 312 × 3 = 936
2) 1,204 × 5 = 6,020
3) 463 × 2 = 926
4) To multiply 700 × 8, first find 7 × 8 = 56, then write 2 zeros.
★ Part C: Short Answer
Answer each question in one or two complete sentences.
1) Explain step by step how to multiply 258 × 4.
Multiply 8 × 4 = 32, write 2 carry 3. Then 5 × 4 = 20 plus 3 = 23, write 3 carry 2. Then 2 × 4 = 8 plus 2 = 10. The answer is 1,032.
2) A farmer plants 215 seeds in each row and has 6 rows. How many seeds does the farmer plant in all?
215 × 6 = 1,290. The farmer plants 1,290 seeds in all.
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