Solve: (-81÷81)×(-1)

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A 1
B -1
C -81
D -18

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Answer: A. 1

Inside the bracket, -81 / 81 = -1 (a negative divided by a positive is negative). Then (-1) x (-1) = 1, because the product of two negatives is positive.

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Solve: (-81÷81)×(-1)

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