Question

Resolva as operações, utilizando a regra conforme a operação indicada:
a) – 9 + 5 =
b) – 9 . (+5) =
c) – 40 : (–4) =
d) – 40 + (–4) =
e) – 40 – (–4) =
f) +12 – (–8) + (+1) =
g) +12 . (–8) . (+1) =
h) 100 : 50 =
i) (–100) : (–50) =
j) – 100 – 50

Answer 1

Resposta:

a)-4. b)-1,8. c)10. d)44

e)-36. f)21. g)-0,5. h)2

I)2. j)-150

Explicação passo-a-passo:

a) )-9+5=-(9-5)=-4

b)-9÷(+5)=-(9÷5)=-1,8

c)40÷(-4)=40÷4=10

d)-40+(-4)=-40-4=44

e)-40-(-4)=-40+4=-36

f)+12-(-8)+(+1)=12+8+1=21

g)+12÷(-8)+(+1)=-1,5+1=-0,5

h)100÷50=2

I)(-100)÷(-50)=100÷50=2

j)-100-50=-(100+50)=-150