Let’s solve each multiplication problem step by step. We’ll go row by row, left to right.
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First Row:
1. 35 × 40
→ 35 × 4 = 140 → add a zero →
1400
2. 21 × 54
→ Break it down:
21 × 50 = 1050
21 × 4 = 84
Add: 1050 + 84 =
1134
3. 81 × 99
→ Trick: 81 × (100 - 1) = 81×100 - 81 = 8100 - 81 =
8019
4. 89 × 25
→ Think: 89 × 100 4 = 8900 ÷ 4 =
2225
(Or: 80×25=2000, 9×25=225 → 2000+225=2225)
5. 85 × 59
→ 85 × 60 = 5100 → subtract 85 → 5100 - 85 =
5015
6. 81 × 60
→ 81 × 6 = 486 → add zero →
4860
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Second Row:
7. 16 × 73
→ 10×73 = 730
6×73 = 438
Add: 730 + 438 =
1168
8. 97 × 78
→ Use (100 - 3) × 78 = 7800 - 234 =
7566
9. 39 × 21
→ 40×21 = 840 → subtract 21 → 840 - 21 =
819
10. 57 × 48
→ 50×48 = 2400
7×48 = 336
Add: 2400 + 336 =
2736
11. 25 × 67
→ 25 × 60 = 1500
25 × 7 = 175
Add: 1500 + 175 =
1675
12. 10 × 47
→ Just add zero →
470
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Third Row:
13. 58 × 26
→ 50×26 = 1300
8×26 = 208
Add: 1300 + 208 =
1508
14. 41 × 97
→ 41 × (100 - 3) = 4100 - 123 =
3977
15. 41 × 85
→ 40×85 = 3400
1×85 = 85
Add: 3400 + 85 =
3485
16. 10 × 23
→ Add zero →
230
17. 41 × 98
→ 41 × (100 - 2) = 4100 - 82 =
4018
18. 16 × 74
→ 10×74 = 740
6×74 = 444
Add: 740 + 444 =
1184
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Fourth Row:
19. 54 × 81
→ Let’s do 50×81 = 4050
4×81 = 324
Add: 4050 + 324 =
4374
20. 84 × 36
→ 80×36 = 2880
4×36 = 144
Add: 2880 + 144 =
3024
21. 39 × 93
→ 40×93 = 3720 → subtract 93 → 3720 - 93 =
3627
22. 46 × 68
→ 40×68 = 2720
6×68 = 408
Add: 2720 + 408 =
3128
23. 44 × 18
→ 40×18 = 720
4×18 = 72
Add: 720 + 72 =
792
24. 10 × 62
→ Add zero →
620
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Now let’s list all answers in order as they appear on the worksheet:
Row 1:
1400, 1134, 8019, 2225, 5015, 4860
Row 2:
1168, 7566, 819, 2736, 1675, 470
Row 3:
1508, 3977, 3485, 230, 4018, 1184
Row 4:
4374, 3024, 3627, 3128, 792, 620
✔ All calculations double-checked.
Final Answer:
1400, 1134, 8019, 2225, 5015, 4860, 1168, 7566, 819, 2736, 1675, 470, 1508, 3977, 3485, 230, 4018, 1184, 4374, 3024, 3627, 3128, 792, 620
Parent Tip: Review the logic above to help your child master the concept of multiplication worksheet grade 5.