Question

80+0.4 (-10)^3+1,2*(-10)^2

Answer 1

80-0,4*10^3+1/2*100
80-0/4*10^3+120
200-0/4*1000
200-400
200

Answer 2

совсем неверно, там "+", а не "-"

Answer 3

-200?

Answer 4

80 ++++++++ 0,4