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Mathematics 13 Online
OpenStudy (sonyalee77):

To multiply a decimal by a power of ten, move the decimal point to the left the same number of places as there are zeros in the power of ten. A. True B. False

OpenStudy (anonymous):

Hint: 0.1 * 10 = 1.0 0.1* 10^2 = 10

OpenStudy (anonymous):

10^2 = 100

OpenStudy (sonyalee77):

so it's true

OpenStudy (anonymous):

Did I move the decimal in <-- that direction, or This direction ---->

OpenStudy (sonyalee77):

----> that direction right

OpenStudy (anonymous):

Yes, I moved it to the right. The question says "To multiply a decimal by a power of ten, move the decimal point to the LEFT". Most of it is true, but the direction is false.

OpenStudy (anonymous):

Essentially it's a clever trick.

OpenStudy (sonyalee77):

oh thank you soo much you help a lot!!

OpenStudy (anonymous):

You're welcome!

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