Wednesday, October 14, 2009

4.5 Divide Decimals by Decimals (p. 88-91)

I. Follow these steps for dividing a decimal by a decimal
1. Make the divisor a whole number by moving the decimal point to the right (this is like multiplying by 10 for each place you need to move the decimal place over).
2. Move the decimal point in the dividend the same number of places to the right that you moved it in the divisor.
3. Divide like you normally divide by a whole number
4. When you find the quotient, move the decimal point directly up into your answer from the dividend.
5. Check by multiplying the answer by the divisor. It should equal the dividend.

Check out these examples from math.com on how to divide decimals by decimals

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