Question

4.Calcule:
a) -14+42:3 =
b) 40:(-2)+9 =
c) (-12):3+6 =
d) (-54):(-9)+2 =
e) 20+(-10).(-5) =
f) (-1).(-8)+20 =
g) 4+6.(-2) =
h) 3.(-7)+40 =
1)(+3).(-2)-25 =
1)(-4).(-5)+8.(+2) =
k) 5:(-5)+9.2 =
1)36:(-6)+5.4 =​

Answer 1

Resposta:

a) -14+42:3=

-14+14=0

b) 40:(-2)+9=

-20+9=-11

c) (-12):3+6=

-4+6=2

d) (-54):(-9)+2=

6+2=8

e) 20+(-20).(-5)=

20-20.(-5)=

0.(-5)=0

f) (-1).(-8)+20=

8+20=28

g) 4+6.(-2)=

10.(-2)=-20

h) 3.(-7)+40=

-21+40=19

i) (+3).(-2)-25=

-6-25=-31

j) (-4).(-5)+8.(+2)=

20+16=36

k) 5:(-5)+9.2=

-1+18=17

l) 36:(-6)+5.4=

-6+20=14

Explicação passo-a-passo: