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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 176 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.0.31 × 3.7 =
  2. 2.5.2 × 0.21 =
  3. 3.0.18 × 0.6 =
  4. 4.2.2 × 1.3 =
  5. 5.0.52 × 2.3 =
  6. 6.0.14 × 2.5 =
  7. 7.7.7 × 3.5 =
  8. 8.5.1 × 0.09 =
  9. 9.1.1 × 2.4 =
  10. 10.8.1 × 0.06 =
  11. 11.0.98 × 3.1 =
  12. 12.4.8 × 3.1 =
  13. 13.0.31 × 2.8 =
  14. 14.8.6 × 1.1 =
  15. 15.0.31 × 3.3 =
  16. 16.0.59 × 0.8 =
  17. 17.0.21 × 3.8 =
  18. 18.0.22 × 1.1 =
  19. 19.1.3 × 0.9 =
  20. 20.0.18 × 3.1 =
  21. 21.0.11 × 1.1 =
  22. 22.1.8 × 1.3 =
  23. 23.0.21 × 1.1 =
  24. 24.5.1 × 0.33 =
  25. 25.6.5 × 0.17 =
  26. 26.1.8 × 3.5 =
  27. 27.2.7 × 2.9 =
  28. 28.0.13 × 2.1 =
  29. 29.0.11 × 1.2 =
  30. 30.0.85 × 0.7 =
  31. 31.6.9 × 0.05 =
  32. 32.9.2 × 1.4 =
  33. 33.1.3 × 0.16 =
  34. 34.0.46 × 3.3 =
  35. 35.0.82 × 0.8 =
  36. 36.6.9 × 3.7 =
  37. 37.8.9 × 3.6 =
  38. 38.0.53 × 3.5 =
  39. 39.5.4 × 0.06 =
  40. 40.5.4 × 3.2 =

Answer key

  1. 1.147
  2. 1.092
  3. 0.108
  4. 2.86
  5. 1.196
  6. 0.35
  7. 26.95
  8. 0.459
  9. 2.64
  10. 0.486
  11. 3.038
  12. 14.88
  13. 0.868
  14. 9.46
  15. 1.023
  16. 0.472
  17. 0.798
  18. 0.242
  19. 1.17
  20. 0.558
  21. 0.121
  22. 2.34
  23. 0.231
  24. 1.683
  25. 1.105
  26. 6.3
  27. 7.83
  28. 0.273
  29. 0.132
  30. 0.595
  31. 0.345
  32. 12.88
  33. 0.208
  34. 1.518
  35. 0.656
  36. 25.53
  37. 32.04
  38. 1.855
  39. 0.324
  40. 17.28

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