Ответ:\(290\cdot3=870\).\(960:8=120\).\(78:26=3\).\(92:23=4\).\(140\cdot4=560\).\(850:5=170\).\(52:26=2\).\(72:24=3\).Ответ: 870; 120; 3; 4; 560; 170; 2; 3.