Sure! Let’s solve each of the 12 column multiplication problems step by step. Since this is “column multiplication,” we’ll multiply two-digit numbers using the standard algorithm — multiplying by each digit and adding the partial products.
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Problem 1: 85 × 64
Break it down:
- Multiply 85 × 4 = 340
- Multiply 85 × 60 = 5,100
- Add them: 340 + 5,100 =
5,440
✔ Answer: 5,440
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Problem 2: 97 × 35
- 97 × 5 = 485
- 97 × 30 = 2,910
- Total: 485 + 2,910 =
3,395
✔ Answer: 3,395
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Problem 3: 63 × 72
- 63 × 2 = 126
- 63 × 70 = 4,410
- Total: 126 + 4,410 =
4,536
✔ Answer: 4,536
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Problem 4: 28 × 27
- 28 × 7 = 196
- 28 × 20 = 560
- Total: 196 + 560 =
756
✔ Answer: 756
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Problem 5: 35 × 92
- 35 × 2 = 70
- 35 × 90 = 3,150
- Total: 70 + 3,150 =
3,220
✔ Answer: 3,220
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Problem 6: 46 × 57
- 46 × 7 = 322
- 46 × 50 = 2,300
- Total: 322 + 2,300 =
2,622
✔ Answer: 2,622
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Problem 7: 98 × 46
- 98 × 6 = 588
- 98 × 40 = 3,920
- Total: 588 + 3,920 =
4,508
✔ Answer: 4,508
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Problem 8: 53 × 87
- 53 × 7 = 371
- 53 × 80 = 4,240
- Total: 371 + 4,240 =
4,611
✔ Answer: 4,611
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Problem 9: 74 × 36
- 74 × 6 = 444
- 74 × 30 = 2,220
- Total: 444 + 2,220 =
2,664
✔ Answer: 2,664
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Problem 10: 84 × 77
- 84 × 7 = 588
- 84 × 70 = 5,880
- Total: 588 + 5,880 =
6,468
✔ Answer: 6,468
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Problem 11: 39 × 44
- 39 × 4 = 156
- 39 × 40 = 1,560
- Total: 156 + 1,560 =
1,716
✔ Answer: 1,716
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Problem 12: 68 × 37
- 68 × 7 = 476
- 68 × 30 = 2,040
- Total: 476 + 2,040 =
2,516
✔ Answer: 2,516
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##
✔ Final Answers (for filling in the worksheet):
1.
5,440
2.
3,395
3.
4,536
4.
756
5.
3,220
6.
2,622
7.
4,508
8.
4,611
9.
2,664
10.
6,468
11.
1,716
12.
2,516
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📌
Tip for Students: When doing column multiplication, always remember to:
- Multiply the top number by the ones digit first.
- Then multiply by the tens digit (and add a zero or shift left).
- Finally, add the two partial products.
Let me know if you’d like to see any of these worked out visually or with a grid method!
Parent Tip: Review the logic above to help your child master the concept of math 4 grade worksheet.
