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An even number is a number that ends with the digit 0, 2, 4, 6, or 8. It is divisible by 2. For example: 18, 30.
An odd number is a number that ends with the digit 1, 3, 5, 7, or 9. It is not divisible by 2. For example: 21, 35.
Properties of even and odd numbers:
| even + even = even | odd + odd = even |
| even + odd = odd | odd + even = odd |
| even – even = even | odd – odd = even |
| even – odd = odd | odd – even = odd |
For example:
Consider the addition expression 66 + 6.
Here, the first number 66 ends with 6, which is an even number.
So, 66 is even.
Similarly, the second number 6 is also an even number.
According to the rule:
Even + Even = Even
So, 66 + 6 is even.
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21,27,23
21 is the smallest number.
