Explanation:
Let's solve each multiplication problem step by step using the column method. We multiply the top number by each digit of the bottom number, starting from the right, and then add the results.
1. 428 × 77
- First, multiply 428 × 7 = 2,996
- Then, multiply 428 × 70 = 29,960
- Add: 2,996 + 29,960 = 32,956
→ Answer: 32,956
2. 864 × 56
- 864 × 6 = 5,184
- 864 × 50 = 43,200
- Add: 5,184 + 43,200 = 48,384
→ Answer: 48,384
3. 744 × 94
- 744 × 4 = 2,976
- 744 × 90 = 66,960
- Add: 2,976 + 66,960 = 69,936
→ Answer: 69,936
4. 515 × 73
- 515 × 3 = 1,545
- 515 × 70 = 36,050
- Add: 1,545 + 36,050 = 37,595
→ Answer: 37,595
5. 763 × 39
- 763 × 9 = 6,867
- 763 × 30 = 22,890
- Add: 6,867 + 22,890 = 29,757
→ Answer: 29,757
6. 984 × 46
- 984 × 6 = 5,904
- 984 × 40 = 39,360
- Add: 5,904 + 39,360 = 45,264
→ Answer: 45,264
7. 476 × 88
- 476 × 8 = 3,808
- 476 × 80 = 38,080
- Add: 3,808 + 38,080 = 41,888
→ Answer: 41,888
8. 417 × 62
- 417 × 2 = 834
- 417 × 60 = 25,020
- Add: 834 + 25,020 = 25,854
→ Answer: 25,854
9. 763 × 22
- 763 × 2 = 1,526
- 763 × 20 = 15,260
- Add: 1,526 + 15,260 = 16,786
→ Answer: 16,786
10. 427 × 59
- 427 × 9 = 3,843
- 427 × 50 = 21,350
- Add: 3,843 + 21,350 = 25,193
→ Answer: 25,193
11. 637 × 55
- 637 × 5 = 3,185
- 637 × 50 = 31,850
- Add: 3,185 + 31,850 = 35,035
→ Answer: 35,035
12. 674 × 49
- 674 × 9 = 6,066
- 674 × 40 = 26,960
- Add: 6,066 + 26,960 = 33,026
→ Answer: 33,026
Final Answer:
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
Parent Tip: Review the logic above to help your child master the concept of 5th grade math multiplication.
