When 100 is subtracted from a number, the digit at its hundreds place decreases by 1.
For example: Consider the number 567. It can be written in the place value table as:
There are 5 hundreds in the number 567.
When 100 is subtracted from 567, the digit at its hundreds place decreases by 1.
5 – 1 = 4
So, 567 – 100 = 467.
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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 is the smallest number.