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Is 36 odd or even

Step by step, with the reason for every step · Odd and even · Elementary

Step by step

The question

Question: is 36 odd or even?

Is 36 odd or even?

Even means it makes pairs, with none left over.

Odd means one is left over.

even: all in pairs
odd: 1 left over

1 Look at the ones

36 is 30 and 6.

36 = 30 + 6

Every ten makes 5 pairs.

So 30 is all pairs.

Only the 6 ones are left to check.

10 = 5 pairs

2 Put the ones in pairs

Here are 6 dots in pairs.

A pair is 2.

Ring each pair.

Every dot has a partner.

3 Odd or even

None left over.

So 36 is even.

= 36 is even

4 Check

We count by 2s from 30: 30, 32, 34, 36.

We land on 36.

Yes!

It works.

30, 32, 34, 36

Let's look back.

First: look at the ones.

Then: put the ones in pairs.

Then: odd or even.

Last: check.

Answer
= 36 is even

Your turn

Try this one yourself, then check:

Is 32 odd or even?
Show the answer
even

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