Decimals Worksheets - Free Printable

You’ve uploaded a math worksheet titled “Multiplying 2-Digit Tenths by 1-Digit Whole Numbers (A)”. This is a practice sheet for multiplying decimal numbers (specifically, numbers with one decimal place — “tenths”) by single-digit whole numbers.

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📌 Objective:

Calculate each product:
Example: `1.7 × 3`, `1.5 × 4`, etc.

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## ✔ Step-by-Step Solution:

We’ll solve each problem row by row. The key idea is to multiply as if they were whole numbers, then place the decimal point so that the answer has one decimal place (since we’re multiplying a number with one decimal place by a whole number).

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🔢 Row 1:

1. 1.7 × 3
→ 17 × 3 = 51 → Place decimal: 5.1

2. 1.5 × 4
→ 15 × 4 = 60 → 6.0 or 6

3. 3.3 × 9
→ 33 × 9 = 297 → 29.7

4. 8.4 × 2
→ 84 × 2 = 168 → 16.8

5. 5.4 × 4
→ 54 × 4 = 216 → 21.6

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🔢 Row 2:

6. 8.1 × 6
→ 81 × 6 = 486 → 48.6

7. 7.4 × 2
→ 74 × 2 = 148 → 14.8

8. 4.4 × 8
→ 44 × 8 = 352 → 35.2

9. 9.6 × 3
→ 96 × 3 = 288 → 28.8

10. 2.7 × 6
→ 27 × 6 = 162 → 16.2

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🔢 Row 3:

11. 5.0 × 4
→ 50 × 4 = 200 → 20.0 or 20

12. 7.0 × 7
→ 70 × 7 = 490 → 49.0 or 49

13. 9.3 × 7
→ 93 × 7 = 651 → 65.1

14. 8.1 × 8
→ 81 × 8 = 648 → 64.8

15. 6.1 × 5
→ 61 × 5 = 305 → 30.5

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🔢 Row 4:

16. 5.7 × 8
→ 57 × 8 = 456 → 45.6

17. 6.9 × 6
→ 69 × 6 = 414 → 41.4

18. 6.4 × 9
→ 64 × 9 = 576 → 57.6

19. 2.8 × 7
→ 28 × 7 = 196 → 19.6

20. 9.3 × 8
→ 93 × 8 = 744 → 74.4

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🔢 Row 5:

21. 4.9 × 3
→ 49 × 3 = 147 → 14.7

22. 8.8 × 2
→ 88 × 2 = 176 → 17.6

23. 3.1 × 2
→ 31 × 2 = 62 → 6.2

24. 3.6 × 4
→ 36 × 4 = 144 → 14.4

25. 2.1 × 6
→ 21 × 6 = 126 → 12.6

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## ✔ Final Answers (in order):

```
5.1 6.0 29.7 16.8 21.6
48.6 14.8 35.2 28.8 16.2
20.0 49.0 65.1 64.8 30.5
45.6 41.4 57.6 19.6 74.4
14.7 17.6 6.2 14.4 12.6
```

> 💡 Tip: You can write answers without trailing zeros (e.g., 6.0 → 6, 20.0 → 20) unless instructed otherwise.

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## 🧠 Concept Recap:

- When multiplying a decimal by a whole number, ignore the decimal at first.
- Multiply the numbers as if they were whole.
- Count the total decimal places in the original numbers — here, only one (from the 2-digit tenths).
- Place the decimal point in the product so that it has one decimal place.

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✔ All problems solved! Let me know if you’d like to see any worked out step-by-step visually or need help with similar problems.