Question

efetue as seguintes esxpressoes numericas: A)7-(4-8) B)-2-(13+8) C)1-[1-(2-2) D)1-[1-(2-4)] E)0-[-5-(-7-10)] F)3-(7-8)-(5-10)

Answer 1

→ Cálculo :

A) 7 - ( 4 - 8 )

7 - ( - 4 )

7 + 4

11

B) - 2 - ( 13 + 8 )

- 2 - 21

-23

C) 1 - [ 1 - ( 2 - 2 ) ]

1 - [ 1 - 0 ]

1 - 1

0

D) 1 - [ 1 - ( 2 - 4 ) ]

1 - [ 1 - ( - 2 ) ]

1 - [ 1 + 2 ]

1 - 3

-2

E) 0 - [ - 5 - ( - 7 - 10 ) ]

0  - [ - 5 - ( - 17 ) ]

0 - [ - 5 + 17 ]

0 - 12

-12

F) 3 - ( 7 - 8 ) - ( 5 - 10 )

3 - ( - 1 ) - ( - 5 )

3 + 1 + 5

4 + 5

9