Question

3) Calcule no caderno:
a) (-4) – (-8) =
b) ( - 3) – ( +9) =
c) (-9) – (-9)=
d) (+13) – (-4) =
e) 0 – (+7) =
f) ( +9 ) – ( +9)
g) ( - 8) – ( -12) =
h) (-16) – ( -9)=
me ajudem prfv

Answer 1

Resposta:

a) 12

b) menos 3

c)0

d)3,25

e)0,7

f)0

g)4

h)7