1.

Given interchanges : Signs + and - , numbers 4 and 8.

A. 4 + 8 - 12 = 12
B. 4 - 8 + 12 = 0
C. 8 + 4 - 12 = 24
D. 8 - 4 + 12 = 8
Answer» C. 8 + 4 - 12 = 24


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