Ответ:\(19+27=46\).\(37-19=18\).\(42:7\cdot8=6\cdot8=48\).\(60\cdot5:10=300:10=30\).\(12\cdot3:9=36:9=4\).\(46:2\cdot3=23\cdot3=69\).\(280:4:7=70:7=10\).Ответ: 46; 18; 48; 30; 4; 69; 10.