# How to Rearrange an Equation

## How to Add on a Number Line

Adding on a number line is easy.## Question

Use a number line to find**4 + 3**.

## Step-by-Step:

## 1

Find

**4**on the number line.**4**+ 3

## 2

Move

**3**to the**right**along the number line.
4

**+ 3**## 3

Read off the number you have reached.

## Answer:

4 + 3 =**7**

## Top Tip

## To Add, Go Right

**Adding**means going

**right**on a number line.

## Note

## The Order of Adding Doesn't Matter

In our example, we have found**4 + 3**.

But the order in which we add the numbers doesn't matter... we can swap the numbers around:

**4 + 3 = 3 + 4**

*commutative*property of addition: you can change the order of the numbers around the sign and still get the same answer.

## Worksheet

This test is printable and sendable