Question

Resolva as expressões abaixo b)(640-50.8)÷6-31 c)3+(16-4.3)-6÷2 d)15+3.7-2.3+8÷2

Answer 1

b)(640-50.8)÷6-31
(640-400)÷6-31
240 ÷ 6 - 31
40 - 31
9






c)3+(16-4.3)-6÷2
3 + 4 - 3
7 - 3
4








d)15+3.7-2.3+8÷2
15 + 21 - 6 + 4
36 - 2
34