Question

Questão 09- Resolva as expressões com parênteses,
colchetes e chaves
a) 25 -[10 + (7-4)]
b) 32 +[10 -(9-4)+8]
c) 45 -[12 - 4+(2+1)]
d) 70 -{20 -[10-(5-1)]}​

Answer 1

a) 25 -[10 + (3)]
25 -13
25-13 = 12

b) 32 +[10 -(5)+8]
32 +[18 -5]
32 + 13
33 + 13 = 46

c) 45 -[12-4+(3)]
45 -[8+3]
45 - 11
45 - 11 = 34

d) 70 -{20 -[10-(5-1)]}
70 -{20 -[10-(4)]}
70 -{20 -[10-4]}
70 -{20 - 6 }
70 - 14
70 -14 = 66