How would you use a number line to round 148 to the nearest ten?

Your number line must go from 140 to 150. Number the spaces in between : 141, 142, 143, etc.

Is 148 closer to 140 or 150?

150

789

100

To use a number line to round 148 to the nearest ten, you would need to plot the number 148 on a number line and identify the nearest ten values.

To construct the number line, start by drawing a straight line and marking it with evenly spaced intervals. These intervals would typically represent units, such as 1, 2, 3, and so on. In this case, we would mark our number line with intervals of 10.

Then, locate the number 148 on the number line and determine its relative position with respect to the nearest tens values, which are multiples of 10. In this case, the nearest tens values are 140 and 150.

On the number line, mark both 140 and 150 as reference points. Compare the distance between 148 and each of these reference points. The reference point that is closest to 148 would determine the rounded value.

If the distance between 148 and 140 is smaller than the distance between 148 and 150, then 148 would be rounded down to 140. Likewise, if the distance between 148 and 150 is smaller, then 148 would be rounded up to 150.

Using a number line, you can visualize the proximity of the number you want to round to the available tens values and determine the appropriate rounding.