Question

efectuati: a)40-(14-3) 78-(46-21) (132-87)-41 b)(156+132)-56 156-56+132 c) (843-113)-20 (843-20)-113 843-(113+20) Uregeeeenttttt​

Answer 1

A. 40-(14-3)=
40-11=29

78-(46-21)=
78-25=53

(132-87)-41=
45-41= 4

B. (156+132)-56=
288-56=232

156-56+132=
100+132=232

C. (843-113)-20=
730-20=710

(843-20)-113=
823-113=710

843-(113+20)=
843-133=710

Answer 2

a) 40-(14-3)=40-11=29
78-(46-21)=78-25=53
(132-87)-41=45-41=4

b) (156+132)-56=288-56=232
156-56+132=232

c) (843-113)-20=730-20=710
(843-20)-113=823-113=710
843-(113+20)=843-133=710