Question

2. Une:
7
6 X 5 - 17 + 8) + 2
15
6 X 7:16 - 4) - 6
10
(7 x 5) - (17 + 11): 2
21
(12 + 12 - 4):( (15 - 7):4)
17
(21 x 2): (20 - 14)
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Answer 1

6 X 5 - 17 + 8) + 2=21