Question

Resolva as expressões
A. [15.2-(30:3)]+7
B.10.[30:(2.3)]+4+15
C.(5²-5.2):(2+√49-27)
D.1/2+2.3-10-10-2.(3/2:1)

Answer 1

A)- [15.2-(30:3)]+7
[30-10]+7

Faça sempre primeiro as continhas que estiverem dentro de parênteses,chaves etc...

20+7
27

B)-10.[30:(2.3)]+4+15

10.[30:6]+4+15
10.180+4+15
1800+19
1819