Math worksheet for rounding decimals to the nearest tenth.

Let's solve the problem step by step.

We are asked to round each decimal number to the nearest tenth.
The tenths place is the first digit after the decimal point.

🔹 Rounding Rule:

- Look at the hundredths place (the second digit after the decimal).
- If it’s 5 or greater, round up the tenths digit.
- If it’s less than 5, keep the tenths digit the same.

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Now, let's go through each number:

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Left Column:

1. 2.451
- Tenths: 4
- Hundredths: 5 → ≥ 5 → round up
- 2.451 ≈ 2.5

2. 2.434
- Tenths: 4
- Hundredths: 3 → < 5 → no change
- 2.434 ≈ 2.4

3. 2.51
- Tenths: 5
- Hundredths: 1 → < 5 → no change
- 2.51 ≈ 2.5

4. 12.516
- Tenths: 5
- Hundredths: 1 → < 5 → no change
- 12.516 ≈ 12.5

5. 16.687
- Tenths: 6
- Hundredths: 8 → ≥ 5 → round up
- 16.687 ≈ 16.7

6. 17.44
- Tenths: 4
- Hundredths: 4 → < 5 → no change
- 17.44 ≈ 17.4

7. 11.553
- Tenths: 5
- Hundredths: 5 → ≥ 5 → round up
- 11.553 ≈ 11.6

8. 11.491
- Tenths: 4
- Hundredths: 9 → ≥ 5 → round up
- 11.491 ≈ 11.5

9. 13.49
- Tenths: 4
- Hundredths: 9 → ≥ 5 → round up
- 13.49 ≈ 13.5

10. 13.51
- Tenths: 5
- Hundredths: 1 → < 5 → no change
- 13.51 ≈ 13.5

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Right Column:

1. 19.92
- Tenths: 9
- Hundredths: 2 → < 5 → no change
- 19.92 ≈ 19.9

2. 13.16
- Tenths: 1
- Hundredths: 6 → ≥ 5 → round up
- 13.16 ≈ 13.2

3. 13.55
- Tenths: 5
- Hundredths: 5 → ≥ 5 → round up
- 13.55 ≈ 13.6

4. 7.56
- Tenths: 5
- Hundredths: 6 → ≥ 5 → round up
- 7.56 ≈ 7.6

5. 8.542
- Tenths: 5
- Hundredths: 4 → < 5 → no change
- 8.542 ≈ 8.5

6. 9.52
- Tenths: 5
- Hundredths: 2 → < 5 → no change
- 9.52 ≈ 9.5

7. 19.535
- Tenths: 5
- Hundredths: 3 → < 5 → no change
- 19.535 ≈ 19.5

8. 29.46
- Tenths: 4
- Hundredths: 6 → ≥ 5 → round up
- 29.46 ≈ 29.5

9. 89.95
- Tenths: 9
- Hundredths: 5 → ≥ 5 → round up
- But 9 + 1 = 10 → carry over
- So 89.95 ≈ 90.0

10. 2.45
- Tenths: 4
- Hundredths: 5 → ≥ 5 → round up
- 2.45 ≈ 2.5

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✔ Final Answers:

| Original | Rounded to Nearest Tenth |
|--------|--------------------------|
| 2.451 | 2.5 |
| 2.434 | 2.4 |
| 2.51 | 2.5 |
| 12.516 | 12.5 |
| 16.687 | 16.7 |
| 17.44 | 17.4 |
| 11.553 | 11.6 |
| 11.491 | 11.5 |
| 13.49 | 13.5 |
| 13.51 | 13.5 |
| 19.92 | 19.9 |
| 13.16 | 13.2 |
| 13.55 | 13.6 |
| 7.56 | 7.6 |
| 8.542 | 8.5 |
| 9.52 | 9.5 |
| 19.535 | 19.5 |
| 29.46 | 29.5 |
| 89.95 | 90.0 |
| 2.45 | 2.5 |

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✔ All numbers have been rounded correctly to the nearest tenth.

Let me know if you'd like this as a printable sheet!