Steply

Calculate 400 + 6

Step by step, with the reason for every step · Hundreds, tens, ones · Elementary

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

Your turn

Try this one yourself, then check:

300 + 7
Show the answer
307

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