Sure! Let’s solve each multiplication problem step by step using the
column method (also called long multiplication). This method involves multiplying each digit of the bottom number by each digit of the top number, then adding the results with proper place value alignment.
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1. 428 × 77
Break it into:
428 × 70 + 428 × 7
- 428 × 7 = 2996
- 428 × 70 = 29960 (add a zero at the end)
→ Add: 29960 + 2996 =
32956
✔ Answer: 32,956
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2. 864 × 56
Break into: 864 × 50 + 864 × 6
- 864 × 6 = 5184
- 864 × 50 = 43200
→ Add: 43200 + 5184 =
48,384
✔ Answer: 48,384
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3. 744 × 94
Break into: 744 × 90 + 744 × 4
- 744 × 4 = 2976
- 744 × 90 = 66960
→ Add: 66960 + 2976 =
69,936
✔ Answer: 69,936
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4. 515 × 73
Break into: 515 × 70 + 515 × 3
- 515 × 3 = 1545
- 515 × 70 = 36050
→ Add: 36050 + 1545 =
37,595
✔ Answer: 37,595
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5. 763 × 39
Break into: 763 × 30 + 763 × 9
- 763 × 9 = 6867
- 763 × 30 = 22890
→ Add: 22890 + 6867 =
29,757
✔ Answer: 29,757
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6. 984 × 46
Break into: 984 × 40 + 984 × 6
- 984 × 6 = 5904
- 984 × 40 = 39360
→ Add: 39360 + 5904 =
45,264
✔ Answer: 45,264
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7. 476 × 88
Break into: 476 × 80 + 476 × 8
- 476 × 8 = 3808
- 476 × 80 = 38080
→ Add: 38080 + 3808 =
41,888
✔ Answer: 41,888
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8. 417 × 62
Break into: 417 × 60 + 417 × 2
- 417 × 2 = 834
- 417 × 60 = 25020
→ Add: 25020 + 834 =
25,854
✔ Answer: 25,854
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9. 763 × 22
Break into: 763 × 20 + 763 × 2
- 763 × 2 = 1526
- 763 × 20 = 15260
→ Add: 15260 + 1526 =
16,786
✔ Answer: 16,786
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10. 427 × 59
Break into: 427 × 50 + 427 × 9
- 427 × 9 = 3843
- 427 × 50 = 21350
→ Add: 21350 + 3843 =
25,193
✔ Answer: 25,193
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11. 637 × 55
Break into: 637 × 50 + 637 × 5
- 637 × 5 = 3185
- 637 × 50 = 31850
→ Add: 31850 + 3185 =
35,035
✔ Answer: 35,035
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12. 674 × 49
Break into: 674 × 40 + 674 × 9
- 674 × 9 = 6066
- 674 × 40 = 26960
→ Add: 26960 + 6066 =
33,026
✔ Answer: 33,026
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##
✔ Final Answers:
1.
32,956
2.
48,384
3.
69,936
4.
37,595
5.
29,757
6.
45,264
7.
41,888
8.
25,854
9.
16,786
10.
25,193
11.
35,035
12.
33,026
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Let me know if you’d like to see the full column multiplication layout for any of them — I can draw it out step-by-step!
Parent Tip: Review the logic above to help your child master the concept of 5 grade math multiplication.
