Question

04) Calcule:
a) (+11) + (-9) =
c) (+130) - (-30) =
b) (-21) + (+20) =
d) (-75) - (+48) =
f) (-2).(-6)=
e) (-5).(+6) =
i) (+ 70 ): (+7) =
g) ( + 2).(+ 1) =
h) (-35):(-5) =
1) (+45):(-9) =
​

Answer 1

Resposta:

a $11 - 9 = 2$

b $130 + 30 = 160$

c $- 21 + 20 = - 1$

d $- 75 - 48 = - 128$

e $+ 12$

f $- 30$

g $+ 10$

h $+ 3$

i $+ 7$

j $- 5$