Question

CALCULE AS EXPRESSÕES:

A) (-3)-(-5)+(-6)+(+8)-(-4)
B) (+4)+(-2)-(+3)
C) (+4)+(-6)-(+7)-(-6)+(+7)
D)(+5)-(-3)-(-1)

Answer 1

A) -3+5-6+8+4

-3-6+5+8+4

-9+17= 8

B)4-2-3

4-5= -1

C)4-6-7+6+7

4+6+7-6-7

17-13=4

D) 5+3+1

8+1=9