When a decimal is multiplied by 10, every figure moves one place to the left.
When multiplying by 100, every figure moves two places to the left.
When multiplying by 1000, every figure moves three places to the left.
Which is bigger: 0.005 × 10 or 0.0004 × 1000?
The answer is 0.0004 × 1000
If you didn't get it right, remember that multiplying by 10 moves each digit one place to the left.
Therefore, 0.005 × 10 = 0.05.
Multiplying by 1000 moves each digit three places to the left.
Therefore, 0.0004 × 1000 = 0.4.
0.4 is bigger than 0.05.
BBC © 2014 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.