Question

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

Answer 1

Olá!!!

Resolução!!!

a)
= ( + 7 ) + ( - 2 )
= 7 + ( - 2 )
= 7 - 2
= 5

b)
= ( - 3 ) + ( + 4 )
= ( - 3 ) + 4
= 3 - 4
= - 1

c)
= ( + 4 ) + ( - 6 )
= 4 + ( - 6 )
= 4 - 6
= - 2

d)
= ( + 5 ) + ( - 5 )
= 5 + ( - 5 )
= 5 - 5
= 0

e)
= ( + 1 ) + ( + 4 )
= 1 + 4
= 5

f)
= ( - 2 ) + ( - 1 )
= - 2 - 1
= - 3

Espero ter ajudado!!!