Question

. Bruce must calculate 8.12 ÷ 1.6 longhand, but he can't remember what to do about decimal points.Instead, Bruce solves the division problem 812 ÷ 16 longhand and gets the

answer 48.875. Bruce knows that he must shift the decimal point in 50.75 somehow to get the correct answer to 8.12 ÷1.6. Explain how Bruce could reason about the sizes of the numbers to determine where to put thedecimal point.

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