Question

N82(5,6), 83, 84(2) ДАЮ 60 БАЛОВ

Answer 1

48+(-67)= -19

-69+84= 15

4,75+(-2,83)= 1,92

-6,5+8,23= 1,73

-7/24+5/18= -1/72

-1+4/9= -5/9

1 9/20+(-1 8/15)= -7/30