Question

calcule:

a) (+2).(+9) =
b) (+7).(-5) =
c) (+3).(+14) =
d) 0.(-17) =
e) (+2).(-9) =
f) (-8)-(+11) =
g) (+5).(-17) =
h) (+11).0 =
o) (-2).(+31) =​

Answer 1

Resposta:

a) (+2) • (+9) = 18

b) (+7) • (-5) = -35

c) (+3) • (+14) = 42

d) 0 • (-17) = 0

e) (+2) • (-9) = -18

f) (-8) - (+11) = -19

g) (+5) • (-17) = -85

h) (+11) • 0 = 0

o) (-2) • (+31) = -62

Espero ter ajudado :-)