Ответ:

Выполняем действия, выравнивая запятые в десятичных дробях.

  1. 9,4 + 7,3 = 16,7.
  2. 3,54 − 1,4 = 3,54 − 1,40 = 2,14.
  3. 4,6 + 2,85 = 4,60 + 2,85 = 7,45.
  4. 6 − 3,82 = 6,00 − 3,82 = 2,18.
  5. 8,314 − 1,2036 = 8,3140 − 1,2036 = 7,1104.
  6. 4,24 + 8,36 = 12,60 = 12,6.
  7. 8,34 − 3,205 = 8,340 − 3,205 = 5,135.
  8. 24,541 + 1,553 = 26,094.
  9. 17,567 − 7,832 = 9,735.
  10. 2,501 + 18,219 = 20,720 = 20,72.
  11. 3,51 + 6,49 = 10,00 = 10.
  12. 13,321 − 10,41 = 13,321 − 10,410 = 2,911.
  13. 21,612 + 11,394 = 33,006.
  14. 285,874 − 3,96 = 285,874 − 3,960 = 281,914.
  15. 54,285 − 44,016 = 10,269.

Ответ: 16,7; 2,14; 7,45; 2,18; 7,1104; 12,6; 5,135; 26,094; 9,735; 20,72; 10; 2,911; 33,006; 281,914; 10,269.