Question

Expressões Aritméticas

1) 10^2:5^2+3^0.2^2-2^3
2) 6+(2.5-3^2).2
3) 20-5.(2^2-1)+2^2-3.(3-2)

Answer 1

10²:5²+3^0.2²-2³=
100:25+1.4-8=
4+4-8=
8-8=0

6+(2.5-3²).2=
6+(10+9).2=
6+19.2=
6+38= 44

20-5.(2²-1)+2²-3.(3-2)=
20-5.(4-1)+4-3.1=
20-5.3+4-3=
20-15+1=
5+1=6