What comes before 31

Step by step

The question

Question: what comes before 31?

We write it in numbers.

The box is the number we want.

1 Find 31

Here is a number line.

2 Go one step left

We land on 30.

3 Write the number

So before 31 comes 30.

4 Check

We check it the other way.

After 30 comes 31.

Yes!

It works.

Let's look back.

First: find 31.

Then: go one step left.

Then: write the number.

Last: check.