Multiply a Decimal by Powers of 10

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

For example: Let's multiply 925.653 × 100.

To find the product, move the decimal point to the right by as many places as there are 0s in the power of 10.

925.653 × 100 = ?

Notice that there are two zeros in 100.

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


2

So, 925.653 × 100 = 92565.3





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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.