We have been working on powers or ten. It has been a little hard with some people but most of us got it.
Basically you have to move the decimal to the right or left depending on if you are multiplying or dividing. If you are dividing you move the decimal to the left. If you are multiplying you move the decimal to the right. For example, If you are multiplying .23 by 1000 you move the decimal three times to the right because there are three zeros in one thousand and you are multiplying.
Have you ever done powers of ten?
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