Final answer:
To estimate the value of 13 on a number line between 3 and 16, divide the distance into equal parts and count to find the approximate value. The estimate of 13 on the number line would be 4.0.
Step-by-step explanation:
To estimate the value of 13, you can plot it on a number line between 3 and 16. Start by drawing a number line with 3 and 16 labeled. Then, divide the distance between 3 and 16 into equal parts. In this case, you can divide it into 13 parts. Count 13 equal parts starting from 3, and you will arrive at an approximate value for 13 on the number line. In this case, the estimate would be 4.0.