Question

Elimine os parênteses e calcule.
A): 7-(-6)-(-8)
B): -8+(-6)-(+3)
C): 5-6-(+7)+1
D): -28+7+(+12)+(-1)-6
E ): -21-7-6-(-15)-2-(-10)
F): 10-(-8)+(-9)-(-12)-6 +5

Answer 1

Resposta:

A)

7-(-6)-(-8)

7+6+8 = 21

B)

-8+(-6)-(+3)

-8-6-3 = -17

C)

5-6-(+7)+1

5-6-7+1 = -7

D)

-28+7+(+12)+(-1)-6

-28+7+12-1-6 = -16

E )

-21-7-6-(-15)-2-(-10)

-21-7-6+15-2+10 = -11

F)

10-(-8)+(-9)-(-12)-6 +5

10+8-9+12-6+5 = 20