Question

Calcula :
A) (+7)x(-2)
B) (+49x(+7)
C) (-2)x(+2)
D) (+6)x(-15)
E) (+3)x(-7)
F) (+5)x(+8)
G) (-9)x(+5)
H) (-5)x(-4)
I) (+12)x(+3)

Answer 1

A)
(+7)x(-2)
-14

B)
(+49)x(+7)
343

C)
(-2)x(+2)
-4

D)
(+6)x(-15)
-90

E)
(+3)x(-7)
-21

F)
(+5)x(+8)
40

G)
(-9)x(+5)
-45

H)
(-5)x(-4) 
20

I)
(+12)x(+3)
36