Question

Resolver as expressões numéricas a) 40:10+4(7-2) b)30+2-2{6:3+{9x(5-5)]}

Answer 1

40:10+4(7-2)
40:10+4(5)
4+4.5
20+4
24
b)30+2-2{6:3+{9x(5-5)]}
32-2{2+[45-45]}
30{2+0)
28

Answer 2

A) 40:10+4.5   40:10+20     4+20       24   B) 30+2-2{6:3+[9.(5-5)]}     30+2-2{6:3+[9.0]}     30+2-2{6:3+0}      30+2-2{2}      30+2-4       30-2         28 Acho que é isso