Apr17

Multiplying and Dividing Decimal Numbers by Powers of 10

In this post, we will learn how to multiply and divide decimal numbers by 10, 100, 1000 … It is as simple as moving the decimal point of the decimal number to the left or right.

Multiplying decimal numbers by 10, 100, 1000 …

To multiply a decimal number by 10, 100, 1000 … all you have to do is move the decimal point to the right of the decimal as many positions as the number of zeros.

For example:

Since the 100 has two zeros, we will move the decimal point two places to the right. Therefore, the result is 315.4

Dividing decimal numbers by 10, 100, 1000 …

To divide a decimal number by 10, 100, 1000 … all you have to do is move the decimal point to the left as many positions as the number of zeros.

For example: decimal numbers
Since 10 has one zero we will move the decimal point one position to the left. Therefore, the result is 8.42

Check out these posts if you want more practice with multiplying and dividing decimal numbers:

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