102. 407 + 109⋅5 903 – 206⋅4 (700 – 603)⋅6 (800 – 704)⋅7 804:4 627:3

407 + 109 ⋅ 5 = 407 + 545 = 952

903 - 206 ⋅ 4 = 903 - 824 = 79

(700 - 603) ⋅ 6 = 97 ⋅ 6 = 582

(800 - 704) ⋅ 7 = 96 ⋅ 7 = 672

804 : 4 = 201

627 : 3 = 209