Question

4-Calcule o valor destas expressões numéricas:
a)10+(-6).5-(-8)=
b)(-20)+(-2).5-(-3)=
c)-2.(-1)-(-8).2+(-10)=
d)4.(-4).(+1)+(+10)=

Answer 1

Resposta:

a) -12

b) -27

c) 8

d) -6

Explicação passo-a-passo:

a) 10+(−30)−(−8)=

  −20−(−8)=

  −12

b) (−20)+(−10)−(−3)=  

  −30−(−3)=

  −27

c) 2−(−16)+(−10)=  

  18+(−10)=

   8

d) −16⋅(+1)+(+10)=  

   −16+(+10)=

    −6