# 15 Free Interactive Number Line Addition Worksheets

First-graders can improve their knowledge of addition by using our free number line addition worksheets. These free printable worksheets help students develop fundamental skills in addition.

## Practice Addition Problems Using a Number Line

Complete the addition sentence and then justify your answers using number lines. First, place the first number and move from the first number to the second number, counting steps. The point where you land after moving is the sum of the additions.

## Find the Two Missing Addends Using a Number Line

To find the missing addends, look at the number lines where the first numbers and the answers are pointed. Write them down and subtract them to find the second number.

## Solve Addition Problems and Drawing Number Line

Complete the addition and mark the numbers on the number line properly.

## Count and Add Elements Using a Number Line

Some elements with number lines are given on these worksheets. Count them, add them, and write the correct answers. Then mark the points of the numbers on the number line and justify your answers.

## Cut and Paste Activity to Practice Addition Using a Number Line

There are some cut-and-paste activities given on the worksheet. Add the numbers and find their answers. Now justify your answers using the number lines.