Calculate 900 + 30

Step by step

The question

Question: what number is 900 + 30?

1 Put each part in the chart

Here is a place-value chart.

900 is 9 hundreds.

The 9 goes in the hundreds.

30 is 3 tens.

The 3 goes in the tens.

There are no ones.

We write 0 in the ones.

2 Read the number

So the number is 930.

Careful!

Without the 0, the digits move to the wrong places.

The 0 holds the ones place.

3 Check

We split it again: 930 is 900 and 30.

Yes!

It works.

Let's look back.

First: put each part in the chart.

Then: read the number.

Last: check.