Step by step
The question
Question: what number is 400 + 6?
400 + 6
1 Put each part in the chart
Here is a place-value chart.
400 is 4 hundreds.
The 4 goes in the hundreds.
6 is 6 ones.
The 6 goes in the ones.
There are no tens.
We write 0 in the tens.
2 Read the number
So the number is 406.
= 406
Careful!
Without the 0, the digits move to the wrong places.
The 0 holds the tens place.
Careful: not 46 ✗
3 Check
We split it again: 406 is 400 and 6.
Yes!
It works.
406 = 400 + 6
Let's look back.
First: put each part in the chart.
Then: read the number.
Last: check.
Answer
= 406