Divide a Decimal Number by Powers of 10

When dividing by a power of ten, move the decimal point to the left by as many places as there are 0s in the power of 10.

 

For example, let's calculate:

175.321 ÷ 100
 

Here, we observe that there are two zeros in 100.
 

So, move the decimal point two places to the left.

 

1
 

So,

175.321 ÷ 100 = 1.75321





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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.