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21 in Words
21 in words is Twenty-One. In international number system 21 is written as twenty-one. You can use the spelling for learning purpose, in academic use or in a bank check.
| 21 in words | Twenty-One |
|---|---|
| Twenty-One in number | 21 |
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Numbers close to multiples of 500 of 21:
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How to Write 21 in English Words
21 in English words is twenty-one. Now we are going to explain how to write 21 in words.
First we are going to identify digit place of 21 as follows
So we can write 21 as follows:
0 x Thousand + 0 x Hundred + 2 x Ten + 1 x One
= 0 x 1000 + 0 x 100 + 2 x 10 + 1 x 1
= 0000 + 000 + 20 + 1
= 21
= (Twenty-One)
Interesting Facts about 21
| Is 21 an even number? | No |
|---|---|
| Is 21 an odd number? | Yes |
| Is 21 a perfect square number? | No |
| What is the square root of 21? | 4.583 |
| Is 21 a perfect cube number? | No |
| What is the cube root of 21? | 2.759 |
Frequently Asked Questions for 21
- How to spell 21 in words?
The spelling of 21 is Twenty-One.
- How to write 21 in a place value chart?
To write 21 in a place value chart, put 0 in the Thousand, 0 in Hundreds, 2 in Tens and 1 in Ones field.
- How to write 21 on a check?
Write 21 in amount in number and Twenty-One in amount in words for a $21 dollars check or in any other currency.
- How do you write 21 USD on a check with cents?
To write 21 USD in a bank check with cents, follow the example. Ex, for 21 dollar and 50 cents: Twenty-One and 50/100.
- How do you write 21 USD on a check without cents?
To write 21 USD in a bank check without cents, remove and 00/100. check the example. Ex, for 21 dollar and 00 cents: Twenty-One.
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