Question

Efetue as operaçãovcom números inteiros
A ) 8-13+17+13-20=
B ) ( +13 ) - ( - 4 ) - ( + 18 ) + ( - 5 ) =
C ) ( 14 ) - ( - 16 ) + ( - 10 ) - ( - 15 + 8 )

Answer 1

Efetue as operaçãovcom números inteiros

A ) 8-13+17+13-20=
-5+17+13-20
12+13-20
25-20
5


B ) ( +13 ) - ( - 4 ) - ( + 18 ) + ( - 5 ) =

13+4-18-5
17-18-5
-1-5
-6


C ) ( 14 ) - ( - 16 ) + ( - 10 ) - ( - 15 + 8 )

14+16-10+15-8
30-10+15-8
20+15-8
35-8
27