Question

1. Efetue as adições.
a) (+2) + (+3) =
g) (+7) + (+2) + (+5) =
b) (+1)+(+8) =
h) (+4) + (+1) + (+8)=
C) (+3) + (+11) =
i) (+3) + (+8) + (+15) =
d) (-1) + (-2) =
j) (-8) + (-1) + (-2) =
e) (-3) + (-2) =
k) (-9)+(-4) + (-3) =
fi 0 + (-2) =
1. (-10) + (-20) + (-30) =​

Answer 1

Resposta:

a) = 5

g) = 14

b)= 9

h)= 13

c) =14

i)= 26

d)= –3

j) = –6

e)= –1

k ) = –2

f)= –2

1.) = –60