Ответ:\(762-290=472\)\(265+483=748\)\(174+481=655\)\(447-208=239\)\(3\cdot19=57\)\(9\cdot12=108\)\(12:3=4\)\(21:7=3\)Ответ: 472; 748; 655; 239; 57; 108; 4; 3.