1. 12,34.630 + 12,34.570 – 200. •12, 34 =

12,34 ⋅ 630 + 12,34 ⋅ 570 – 200 ⋅ 12,34 = 12,34 ⋅ (630 + 570 – 200) = 12,34 ⋅ 900 = 11106

Ответ: 11106