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Mathematics, 21.11.2020 06:20 graymonky12

Ramin must calculate 8.42 = 3.6 longhand, but he can't remember what to do about decimal points. Instead, Ramin solves the division problem 842 = 36 longhand and gets the answer 23.38. Ramin knows that he must shift the decimal point in 23.38 somehow to get the correct answer to
8.42 - 3.6. Explain how Ramin could use estima-
tion to determine where to put the decimal point.

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Ramin must calculate 8.42 = 3.6 longhand, but he can't remember what to do about decimal points. In...
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