Ответ:\(320\cdot2=640\);\(420:7=60\);\(101\cdot6=606\);\(16\cdot5=80\);\(208\cdot3=624\);\(240:8=30\);\(17\cdot8=136\);\(24\cdot5=120\);\(34\cdot9=306\).