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Published byLia Holgate Modified over 2 years ago

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By: Grace Kendrick

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I think that learning how to add and subtract with decimals is important because it gives you a more precise answer. It is exact.

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Addition 34.3 34 + 16.8 + 17 51 I rounded 34.3 and that stayed as 34 because 3 is lower than 5. Then I rounded 16.8 and that became 17 because 8 is higher than 5.That is how I got my answer. Subtraction 15.7 16 - 9.4 - 9 7 7 I rounded 15.7 up to 16 because 7 is higher than 5.Then I rounded 9.4 to 9 because 4 is lower than 5. That is how I got my answer.

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I wonder how to multiply decimals ? I think that you probably still have to round but then multiply the numbers. I think that because you probably would just use the same method[which is rounding] but different symbols. I wonder how to divide decimals? You probably still have to round but then divide the numbers. I think that because you would probably use the same method[which is rounding the numbers] but with different symbols.

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Multiplying and Dividing Decimals by 10, 100, and 1,000

Multiplying and Dividing Decimals by 10, 100, and 1,000

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