( 90 - 70 : 2 ) - 11 =?

Question

( 90 - 70 : 2 ) - 11 =?

Answer 1

(90-70/2)-11=(90-35)-11=55-11=44
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Answer 2

( 90 - 70 : 2 ) - 11 = 44
1) 70 : 2 = 35
2) 90 - 35 = 55
3) 55 - 11 = 44