Ответ:

  1. \(320\cdot2=640\);
  2. \(420:7=60\);
  3. \(101\cdot6=606\);
  4. \(16\cdot5=80\);
  5. \(208\cdot3=624\);
  6. \(240:8=30\);
  7. \(17\cdot8=136\);
  8. \(24\cdot5=120\);
  9. \(34\cdot9=306\).