1) 300-(90+70)+(86-46) =
300-160+132 = 172
2) 90/(10*9)/(9/9) =
90/90/1 = 1
3) 91/13*7 =
7*7 = 49
4) 84/(14*3) =
84/42 = 2
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Answers & Comments
1) 300-(90+70)+(86-46) =
300-160+132 = 172
2) 90/(10*9)/(9/9) =
90/90/1 = 1
3) 91/13*7 =
7*7 = 49
4) 84/(14*3) =
84/42 = 2