Question

- Resolva as expressões abaixo:
a) (18 - 15+ 3) + 2 =
b) [26 – (13 + 5) – 4] + 15 =
c) 300+ {200 - [(40 + 50) – 90] - 10) =
d) (50 – 56: 8. 4): 11 · 17 =
e) 30 - {20 – 4. [30 - (8 +4). 2] : 2) =​

Answer 1

Resposta:

a)(18 - 15+ 3) + 2 =

(3+3)+2=

6+2=8

b) [26 – (13 + 5) – 4] + 15 =

[26-18-4]+15=

4+15=

=19

c)300+ {200 - [(40 + 50) – 90] - 10) =

300+{200-90-90]-10=

300+20-10=

=310

d) (50-7.4):11.17=

(50-28):11.17=

22:11.17=

2.17=

34

e) 30 - {20 – 4. [30 - (8 +4). 2] : 2) =

30-{20-4[30-12.2] :2)=

30-{20-4(30-24) :2=

30-[20-4.6]:2=

30-[20-24]:2=

30-(-4):2=

30-(-2)

30+2=

32

Espero ter ajudado!