Rounding Numbers Rules and Examples - Free Printable

Problem Description:

The task is to round each given number to the nearest 10. The numbers are provided in a table, and the solutions are already filled in. We need to verify the correctness of these solutions and explain the rounding process.

Rounding Rules:

- Rounding to the Nearest 10: Look at the digit in the ones place (the digit immediately to the right of the tens place).
- If the ones digit is 5 or greater, round up by increasing the tens digit by 1.
- If the ones digit is less than 5, round down by keeping the tens digit the same.
- Replace all digits to the right of the tens place with zeros.

Solution Verification:

#### Left Column:
1. 2,252:
- Ones digit: 2 (less than 5)
- Round down: 2,250
- Correct

2. 3,333:
- Ones digit: 3 (less than 5)
- Round down: 3,330
- Correct

3. 1,121:
- Ones digit: 1 (less than 5)
- Round down: 1,120
- Correct

4. 10,245:
- Ones digit: 5 (equal to 5)
- Round up: 10,250
- Correct

5. 523,215:
- Ones digit: 5 (equal to 5)
- Round up: 523,220
- Incorrect (should be 523,220, not 523,250)

6. 571,268:
- Ones digit: 8 (greater than 5)
- Round up: 571,270
- Correct

7. 16,164:
- Ones digit: 4 (less than 5)
- Round down: 16,160
- Correct

8. 6,690:
- Ones digit: 0 (less than 5)
- Round down: 6,690
- Correct

9. 41,153:
- Ones digit: 3 (less than 5)
- Round down: 41,150
- Correct

#### Right Column:
1. 116,255:
- Ones digit: 5 (equal to 5)
- Round up: 116,260
- Correct

2. 351,111:
- Ones digit: 1 (less than 5)
- Round down: 351,110
- Correct

3. 4,250:
- Ones digit: 0 (less than 5)
- Round down: 4,250
- Correct

4. 19,999:
- Ones digit: 9 (greater than 5)
- Round up: 20,000
- Correct

5. 72,252:
- Ones digit: 2 (less than 5)
- Round down: 72,250
- Correct

6. 585,858:
- Ones digit: 8 (greater than 5)
- Round up: 585,860
- Correct

7. 1,234:
- Ones digit: 4 (less than 5)
- Round down: 1,230
- Correct

8. 15,555:
- Ones digit: 5 (equal to 5)
- Round up: 15,560
- Correct

9. 19,510:
- Ones digit: 0 (less than 5)
- Round down: 19,510
- Correct

Final Answer:

After verifying all the solutions, we find that one solution is incorrect:
- 523,215 should be rounded to 523,220, not 523,250.

Thus, the corrected table is as follows:

| Number | Rounded to Nearest 10 |
|--------------|------------------------|
| 2,252 | 2,250 |
| 3,333 | 3,330 |
| 1,121 | 1,120 |
| 10,245 | 10,250 |
| 523,215 | 523,220 |
| 571,268 | 571,270 |
| 16,164 | 16,160 |
| 6,690 | 6,690 |
| 41,153 | 41,150 |
| 116,255 | 116,260 |
| 351,111 | 351,110 |
| 4,250 | 4,250 |
| 19,999 | 20,000 |
| 72,252 | 72,250 |
| 585,858 | 585,860 |
| 1,234 | 1,230 |
| 15,555 | 15,560 |
| 19,510 | 19,510 |

$$
\boxed{523,220}
$$