Let’s solve each multiplication problem step by step. We’ll use the standard column multiplication method — multiply the top number by the ones digit of the bottom number, then by the tens digit (remembering to add a zero at the end), and finally add the two results together.
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1. 85 × 64
First: 85 × 4 = 340
Then: 85 × 60 = 5100 (because 6 is in the tens place)
Add: 340 + 5100 =
5440
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2. 97 × 35
First: 97 × 5 = 485
Then: 97 × 30 = 2910
Add: 485 + 2910 =
3395
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3. 63 × 72
First: 63 × 2 = 126
Then: 63 × 70 = 4410
Add: 126 + 4410 =
4536
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4. 28 × 27
First: 28 × 7 = 196
Then: 28 × 20 = 560
Add: 196 + 560 =
756
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5. 35 × 92
First: 35 × 2 = 70
Then: 35 × 90 = 3150
Add: 70 + 3150 =
3220
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6. 46 × 57
First: 46 × 7 = 322
Then: 46 × 50 = 2300
Add: 322 + 2300 =
2622
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7. 98 × 46
First: 98 × 6 = 588
Then: 98 × 40 = 3920
Add: 588 + 3920 =
4508
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8. 53 × 87
First: 53 × 7 = 371
Then: 53 × 80 = 4240
Add: 371 + 4240 =
4611
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9. 74 × 36
First: 74 × 6 = 444
Then: 74 × 30 = 2220
Add: 444 + 2220 =
2664
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10. 84 × 77
First: 84 × 7 = 588
Then: 84 × 70 = 5880
Add: 588 + 5880 =
6468
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11. 39 × 44
First: 39 × 4 = 156
Then: 39 × 40 = 1560
Add: 156 + 1560 =
1716
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12. 68 × 37
First: 68 × 7 = 476
Then: 68 × 30 = 2040
Add: 476 + 2040 =
2516
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Final Answer:
1. 5440
2. 3395
3. 4536
4. 756
5. 3220
6. 2622
7. 4508
8. 4611
9. 2664
10. 6468
11. 1716
12. 2516
Parent Tip: Review the logic above to help your child master the concept of math multiplication worksheet 4th grade.