Math worksheet for practicing multiplication of decimals by single-digit whole numbers.

Let’s solve each multiplication problem step by step. We’re multiplying decimals by 1-digit whole numbers. Remember: ignore the decimal at first, multiply as if they’re whole numbers, then put the decimal back in the correct place based on how many decimal places were in the original number.

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First row:

1. 0.60 × 5
→ 60 × 5 = 300
→ 0.60 has 2 decimal places → answer is 3.00 (or just 3)

2. 0.186 × 8
→ 186 × 8 = 1488
→ 0.186 has 3 decimal places → answer is 1.488

3. 0.075 × 2
→ 75 × 2 = 150
→ 0.075 has 3 decimal places → answer is 0.150 (or 0.15)

4. 6.4 × 3
→ 64 × 3 = 192
→ 6.4 has 1 decimal place → answer is 19.2

5. 0.660 × 9
→ 660 × 9 = 5940
→ 0.660 has 3 decimal places → answer is 5.940 (or 5.94)

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Second row:

6. 5.1 × 6
→ 51 × 6 = 306
→ 5.1 has 1 decimal place → 30.6

7. 94.3 × 8
→ 943 × 8 = 7544
→ 94.3 has 1 decimal place → 754.4

8. 6.8 × 5
→ 68 × 5 = 340
→ 6.8 has 1 decimal place → 34.0 (or 34)

9. 2.59 × 2
→ 259 × 2 = 518
→ 2.59 has 2 decimal places → 5.18

10. 0.80 × 7
→ 80 × 7 = 560
→ 0.80 has 2 decimal places → 5.60 (or 5.6)

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Third row:

11. 0.15 × 4
→ 15 × 4 = 60
→ 0.15 has 2 decimal places → 0.60 (or 0.6)

12. 8.7 × 5
→ 87 × 5 = 435
→ 8.7 has 1 decimal place → 43.5

13. 0.42 × 3
→ 42 × 3 = 126
→ 0.42 has 2 decimal places → 1.26

14. 71.8 × 6
→ 718 × 6 = 4308
→ 71.8 has 1 decimal place → 430.8

15. 0.558 × 8
→ 558 × 8 = 4464
→ 0.558 has 3 decimal places → 4.464

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Fourth row:

16. 0.073 × 7
→ 73 × 7 = 511
→ 0.073 has 3 decimal places → 0.511

17. 6.0 × 4
→ 60 × 4 = 240
→ 6.0 has 1 decimal place → 24.0 (or 24)

18. 0.99 × 2
→ 99 × 2 = 198
→ 0.99 has 2 decimal places → 1.98

19. 0.419 × 5
→ 419 × 5 = 2095
→ 0.419 has 3 decimal places → 2.095

20. 0.82 × 3
→ 82 × 3 = 246
→ 0.82 has 2 decimal places → 2.46

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Fifth row:

21. 9.23 × 5
→ 923 × 5 = 4615
→ 9.23 has 2 decimal places → 46.15

22. 46.2 × 4
→ 462 × 4 = 1848
→ 46.2 has 1 decimal place → 184.8

23. 59.8 × 2
→ 598 × 2 = 1196
→ 59.8 has 1 decimal place → 119.6

24. 0.067 × 6
→ 67 × 6 = 402
→ 0.067 has 3 decimal places → 0.402

25. 4.5 × 5
→ 45 × 5 = 225
→ 4.5 has 1 decimal place → 22.5

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Final Answer:
3, 1.488, 0.15, 19.2, 5.94,
30.6, 754.4, 34, 5.18, 5.6,
0.6, 43.5, 1.26, 430.8, 4.464,
0.511, 24, 1.98, 2.095, 2.46,
46.15, 184.8, 119.6, 0.402, 22.5