12 x 7 + 35 x 13 + 17 x 23
12*7+35*13+17*23=84+455+391=930
12 x 7 = 84 35 x 13 = 455 17 x 23 = 391 84 + 455 = 539 539 + 391 = 930 Ответ: 930