Subtract 10 or 100

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:

 

Hundreds Tens Ones
5 6
7

 

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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Help

The correct answer is

Remember :

The smallest number is the one that comes first while counting.

Solution :

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.