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3 October, 22:46

Subtract. 3 - (-18)

a. - 21

b. - 15

c. 15

d. 21

+4
Answers (1)
  1. 4 October, 02:24
    0
    I learned to do KCC (Keep Change Change)

    Keep 3 change the sign, and change the 18 to positive.

    3+18

    Answer: d = 21
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