Explain how you would use a number line to round 148 to the nearest ten.
Is 148 closer to 140 or 150?
150
Right.
To round a number to the nearest ten using a number line, follow these steps:
1. Draw a number line starting with the tens place. In this case, you would draw a number line with 140, 150, 160, etc.
```
140 ------- 150 ------- 160 -------
```
2. Locate the number you want to round, which is 148. Mark it on the number line.
```
140 ------- 148 ------- 150 ------- 160 -------
```
3. Look at the two surrounding tens on the number line, which are 140 and 150.
```
140 ------- 148 ------- 150 ------- 160 -------
```
4. Determine which ten the number is closer to. In this case, 148 is closer to 150.
5. Write down the rounded number. In this case, 148 rounded to the nearest ten is 150.
Using a number line helps visualize the proximity of the number you want to round to the surrounding options and makes it easier to determine the appropriate rounded value.