Final answer:
To add 1310 + 25 using the number line, start at 1310 and move 25 units to the right. The sum, 1335, is the point on the number line where you end up.
Step-by-step explanation:
To add 1310 + 25 using a number line, you'd start at the point representing 1310 and then move 25 units to the right since addition entails a positive movement along the number line. When we count 25 steps from 1310, the sum of the two numbers will appear at the 1335 mark on the number line.
This is a straightforward application of number line addition. Number lines are a fundamental concept in mathematics that helps students visualize the process of adding and subtracting numbers. In this case, the number line visually reinforces that the sum of 1310 and 25 is 1335.