Question

(50-23):3+8*5-6*5-(26-16)*6 ,(5*6-3*4+48:6)+(82-78)*7-13,(69-45):3*2+(43-34)*2

Answer 1

1. (50-23):3+8*5-6*5-(26-16)*6=9+40-60=49-60=-11;
2. (5*6-3*4+48:6)+(82-78)*7-13=(30-12+8)+28=26+28=56;
3.(69-45):3*2+(43-34)*2=4+18=22.