Question

14) Determine as subtrações:
a)(+15)-(-12) =
b) (+17) - (+2) =
c)(-35)-(-18)=
d) (-42) - (+14)=



15) Resolva as adições algébricas:
a) (-9)-(+7)+(+13)-(-20) =
b) (-11) +(-7) + (+18)=
c)(-51)+(-82) - (-12) - (+7)=



10) Calcule as divisões:
a) (+15): (+3) =
b) (-15): (-3) =
c)(+40):(-5) =
d) (-42): (+7) =
e) (+15):(-5) =
D)(-5): (+1) =
g) (+40) : (+2) =
h) (-32): (-8)=​

Answer 1

Resposta:

14......

a) (+15)-(-12)

=+15+12

=27„

b) (+17)-(+2)

=+17-2

=-15„

c) (-35)-(-18)

=-35+18

=-23„

d) (-42)-(+14)

=-42-14

=56„

Answer 2

Resposta:

14)

a)27

b)15

c)-17

d)-56

15)

a)17

b)0

c)-128

10)

a)5

b)5

c)-8

d)-6

e)-3

f)-5

g)20

h)4