Question

помогите 9,10..............

Answer 1

9. 1.(36+58)-(19+47)+(80-66)=94-66+14=38+14=52
2.(43+49)-(26+58)+(90-65)=92-84+35=8+35=43
3.40-36:36+6×10=40-1+60=39+60=99
4.68+14×1-46:1=68+14-46=82-46=36