Question

Calcule:
a) - 8 + 10 =

b) – 6 + 2 =
c) + 12 – 8 =
d) + 15 – 19 =

3) Elimine os parênteses e depois calcule:
A) - (+6) – ( -3) =

B) + (+4) – ( -9) =

C) - (+10) – ( +3) =

D) + (+8) – ( +9) =

E) - (-17) – ( -3) =

F) + (-9) – ( +10) =

G) - (-8) – ( -12) =

H) + (-1) – (+2) =

Answer 1

a) - 8 + 10 = 2
b) – 6 + 2 = 4
c) + 12 – 8 =4
d) + 15 – 19 =-4

3) Elimine os parênteses e depois calcule:
A) - (+6) – ( -3) = - 6 + 3 =

B) + (+4) – ( -9) = 4 + 9 = 13

C) - (+10) – ( +3) = -10 - 3 = -13

D) + (+8) – ( +9) =8 - 9 = -1

E) - (-17) – ( -3) =

F) + (-9) – ( +10) =

G) - (-8) – ( -12) =

H) + (-1) – (+2) =