211,8 : 10 - 3 × [6,28 + (1,2)^2 × 0,5] =
= 21,18 - 3 × (6,28 + 1,44 × 0,5) =
= 21,18 - 3 × (6,28 + 0,72) =
= 21,18 - 3 × 7 =
= 21,18 - 21 =
= 0,18
