Let's solve each multiplication problem step by step. I'll go through them row by row and provide the correct answers.
---
Row 1:
1. $ 81 \times 76 $
- $ 81 \times 76 = (80 + 1) \times 76 = 80 \times 76 + 1 \times 76 = 6080 + 76 = 6156 $
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✔ 6156
2. $ 15 \times 12 $
- $ 15 \times 12 = 180 $
-
✔ 180
3. $ 78 \times 25 $
- $ 78 \times 25 = 78 \times (100/4) = (78 \times 100)/4 = 7800/4 = 1950 $
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✔ 1950
4. $ 8 \times 22 = 176 $
-
✔ 176
5. $ 48 \times 28 $
- $ 48 \times 28 = (50 - 2) \times 28 = 50 \times 28 - 2 \times 28 = 1400 - 56 = 1344 $
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✔ 1344
6. $ 19 \times 9 = 171 $
-
✔ 171
---
Row 2:
7. $ 91 \times 11 $
- $ 91 \times 11 = 91 \times (10 + 1) = 910 + 91 = 1001 $
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✔ 1001
8. $ 98 \times 8 $
- $ 98 \times 8 = (100 - 2) \times 8 = 800 - 16 = 784 $
-
✔ 784
9. $ 4 \times 26 = 104 $
-
✔ 104
10. $ 18 \times 15 $
- $ 18 \times 15 = 18 \times (10 + 5) = 180 + 90 = 270 $
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✔ 270
11. $ 37 \times 17 $
- $ 37 \times 17 = (30 + 7) \times 17 = 30 \times 17 + 7 \times 17 = 510 + 119 = 629 $
-
✔ 629
12. $ 95 \times 29 $
- $ 95 \times 29 = (100 - 5) \times 29 = 2900 - 145 = 2755 $
-
✔ 2755
---
Row 3:
13. $ 54 \times 66 $
- $ 54 \times 66 = (50 + 4) \times 66 = 50 \times 66 + 4 \times 66 = 3300 + 264 = 3564 $
-
✔ 3564
14. $ 97 \times 13 $
- $ 97 \times 13 = (100 - 3) \times 13 = 1300 - 39 = 1261 $
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✔ 1261
15. $ 94 \times 1 = 94 $
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✔ 94
16. $ 83 \times 7 = 581 $
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✔ 581
17. $ 25 \times 5 = 125 $
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✔ 125
18. $ 9 \times 61 = 549 $
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✔ 549
---
Row 4:
19. $ 44 \times 24 $
- $ 44 \times 24 = (40 + 4) \times 24 = 960 + 96 = 1056 $
-
✔ 1056
20. $ 17 \times 23 $
- $ 17 \times 23 = (10 + 7) \times 23 = 230 + 161 = 391 $
-
✔ 391
21. $ 85 \times 6 = 510 $
-
✔ 510
22. $ 96 \times 41 $
- $ 96 \times 41 = (100 - 4) \times 41 = 4100 - 164 = 3936 $
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✔ 3936
23. $ 58 \times 20 = 1160 $
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✔ 1160
24. $ 45 \times 0 = 0 $
-
✔ 0
---
Row 5:
25. $ 47 \times 27 $
- $ 47 \times 27 = (50 - 3) \times 27 = 1350 - 81 = 1269 $
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✔ 1269
26. $ 38 \times 4 = 152 $
-
✔ 152
27. $ 84 \times 14 $
- $ 84 \times 14 = (80 + 4) \times 14 = 1120 + 56 = 1176 $
-
✔ 1176
28. $ 77 \times 36 $
- $ 77 \times 36 = (70 + 7) \times 36 = 2520 + 252 = 2772 $
-
✔ 2772
29. $ 27 \times 10 = 270 $
-
✔ 270
30. $ 5 \times 56 = 280 $
-
✔ 280
---
✔ Final Answers:
Here are all the solutions in order:
```
6156 180 1950 176 1344 171
1001 784 104 270 629 2755
3564 1261 94 581 125 549
1056 391 510 3936 1160 0
1269 152 1176 2772 270 280
```
You can now fill these into the worksheet. Let me know if you'd like a printable version or explanation for any specific problem!
Parent Tip: Review the logic above to help your child master the concept of multiplication for 4th graders worksheets.
