Question

1. Calcule os produtos:
A) 3 x (-5) =
B) (-4) x 8 =
C) 4 x (-25) =
D) (-10) x 33 =
E) 20 x (-36) =
F) (-45) x 6 =
G) 111 x (-2) =
H) (-300) x 50 =

2. Qual é o quociente?
A) (+36) : (+9) =
B) (+55) : (-5) =
C) (-27) : (+3) =
D) (-40) : (-4) =
E) (+15) : (-1) =
F) (-26) : (-26) =
G) 63 : 21 =
H) 48 : (-8) =
I) (-85) : 5 =

Answer 1

Resposta:

a) 3 × (-5) = - 15

b) (- 4) × 8 = - 32

c) 4 × (- 25) = - 100

d) (- 10) × 33 = - 330

e) ( + 5 ) × ( + 3 ) = + 15

f) ( + 4 ) × ( – 5 ) = - 20

g) ( – 8 ) × ( + 4 ) = - 32

h) ( – 6 ) × ( – 7 ) = + 42

i) ( – 2 ) × ( + 4 ) × ( + 3 ) × ( – 1 ) = + 24

j) ( – 5 ) × ( – 6 ) × ( – 2 ) = - 60

k) 2 × (- 3 ) × ( + 6 ) = - 36

l) (- 3 ) × 5 × ( – 7 ) = + 105

Efetue as divisões:

a) ( + 15 ) ÷ ( + 3 ) = + 5

b) ( + 20 ) ÷ ( – 4 ) = - 5

c) ( – 35 ) ÷ ( + 7 ) = - 5

d) ( – 40 ) ÷ ( – 5) = + 8

e) (+ 51 ) ÷ ( – 3 ) = - 17

f) ( – 77 ) ÷ ( + 11 ) = - 7

g) 500 ÷ ( – 25 ) = - 20

h) ( – 750 ) ÷ 10 = - 75

Answer 2

Resposta:

1.

A) -15

B) -32

C) -100

D) -330

E) -720

F) -270

G) -222

H) -15.000

2.

A) 4

B) -11

C) -9

D) 10

E) -15

F) 1

G) 3

H) -6

I) -17