Ответ:

  1. \(8.32:0.64=13\);
  2. \(12.9:8.6=1.5\);
  3. \(0.51:1.7=0.3\);
  4. \(2.5\cdot4.32=10.8\);
  5. \(7.6\cdot13.76=104.576\);
  6. \(18.3-7.54=10.76\);
  7. \(11.6-2.7=8.9\);
  8. \(21.6-12.825=8.775\);
  9. \(14.8-8.93=5.87\);
  10. \((7.8+38.195)-6.86=45.995-6.86=39.135\);
  11. \(9.67-(2.564+5.67)=9.67-8.234=1.436\).