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30 December, 10:50

Consider the subtraction expression 9 + (-10) on the number line shown. Explain how you would evaluate the expression on the number line.

A. Begin at 10 and move 9 units to the left

B. Begin at 10 and move 9 units to the right

C. Begin at 9 and move 10 units to the right

D. Begin at 9 and move 10 units to the left

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Answers (1)
  1. 30 December, 11:38
    0
    9 + (-10) is the same as saying 9-10.

    You would start at your fires number, 9.

    When subtracting you move to the left.

    Start at 9 and move 10 units left. D

    The answer is D
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