(31,2 - 27,64) ∙ 2,05 + 0,702 =
31,20- 27,64------ 3,56
31,2 - 27,64 = 3,56
3,56× 2,05------ 1780712------7,2980
3,56 ∙ 2,05 = 7,298
7,298+ 0,702------ 8,000
7,298 + 0,702 = 8
Ответ: 8