1.

Given interchanges signs '+' and 'x', numbers '3' and '7'

A. 23 + 17 x 73 = 1241
B. 37 + 73 x 12 = 112
C. 23 x 17 + 37 = 428
D. 23 + 17 x 73 = 388
Answer» E.


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