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16 April, 10:08

Find the error in the student's calculation.

23 (2 - 4) + 5 (3 - 8)

23 (-2) + 5 (5)

8 (-2) + 25

-16 + 25

9

+5
Answers (1)
  1. 16 April, 13:21
    0
    Answer: the 5 in the parentheses on the second line should be negative. Also, where did the 23 go? That's a mistake too.

    Step-by-step explanation: 3 - 8 = - 5 so

    23 (2 - 4) + 5 (3 - 8)

    23 (-2) + 5 (-5)

    (-46) + (-25)

    -71

    (at least, I think so unless there was a mistake in the equation)
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