Question

Elimine os parênteses e calcule:
a) (-34) + (+12)
b) (-84) + (+84)
c) (+48) + (-66)
d) (-91) + 0
e) 0 + (+77)
f) (- 3) + (+11) + (-8)
g) (-12) + (-3) + (+9)
h) (-5) + (-1) + (- 26)

Answer 1

→ Cálculo :

a) ( - 34 ) + ( + 12 )

-34 + 12

-22

b) ( - 84 ) + ( + 84 )

-84 + 84

0

c) ( + 48 ) + ( - 66 )

48 - 66

-18

d) ( - 91 ) + 0

-91 + 0

-91

e) 0 + ( + 77 )

0 + 77

77

f) ( - 3 ) + ( +11 ) + ( - 8 )

-3 + 11 - 8

-11 + 11

0

g) ( - 12 ) + ( - 3 ) + ( + 9 )

-12 - 3 + 9

-15 + 9

-6

h) ( - 5 ) + ( - 1 ) + ( - 26 )

-5 - 1 - 26

-6 - 26

-32