Question

12 + (20+30)-2
4+6+ (45-5)
65-30 + (20-10)
(97-7)- (35-5)​

Answer 1

Ответ:

12+(20+30)-2=60

4+6+(45-5)=50

65-30+(20-10)=45

(97-7)-(35-5)=60...

Удачи