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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 350 · 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. 1.1.1 × 0.21 =
  2. 2.1.5 × 0.39 =
  3. 3.1.8 × 0.2 =
  4. 4.0.27 × 1.1 =
  5. 5.0.88 × 1.8 =
  6. 6.0.11 × 0.7 =
  7. 7.1.7 × 2.8 =
  8. 8.2.3 × 0.16 =
  9. 9.4.8 × 3.6 =
  10. 10.5.3 × 0.36 =
  11. 11.0.16 × 2.8 =
  12. 12.5.7 × 3.1 =
  13. 13.8.5 × 2.7 =
  14. 14.0.57 × 2.5 =
  15. 15.6.5 × 1.6 =
  16. 16.8.5 × 3.1 =
  17. 17.0.66 × 3.2 =
  18. 18.6.6 × 2.6 =
  19. 19.0.09 × 3.9 =
  20. 20.7.6 × 3.7 =
  21. 21.0.36 × 0.9 =
  22. 22.0.61 × 3.2 =
  23. 23.0.33 × 0.4 =
  24. 24.3.1 × 0.09 =
  25. 25.1.6 × 0.09 =
  26. 26.2.1 × 3.9 =
  27. 27.8.2 × 0.6 =
  28. 28.7.4 × 3.9 =
  29. 29.2.7 × 0.33 =
  30. 30.7.3 × 1.4 =
  31. 31.1.4 × 3.1 =
  32. 32.8.3 × 3.1 =
  33. 33.2.1 × 0.26 =
  34. 34.0.11 × 2.8 =
  35. 35.0.24 × 0.5 =
  36. 36.8.1 × 0.29 =
  37. 37.2.7 × 0.3 =
  38. 38.4.1 × 1.4 =
  39. 39.0.16 × 3.5 =
  40. 40.2.7 × 2.3 =

Answer key

  1. 0.231
  2. 0.585
  3. 0.36
  4. 0.297
  5. 1.584
  6. 0.077
  7. 4.76
  8. 0.368
  9. 17.28
  10. 1.908
  11. 0.448
  12. 17.67
  13. 22.95
  14. 1.425
  15. 10.4
  16. 26.35
  17. 2.112
  18. 17.16
  19. 0.351
  20. 28.12
  21. 0.324
  22. 1.952
  23. 0.132
  24. 0.279
  25. 0.144
  26. 8.19
  27. 4.92
  28. 28.86
  29. 0.891
  30. 10.22
  31. 4.34
  32. 25.73
  33. 0.546
  34. 0.308
  35. 0.12
  36. 2.349
  37. 0.81
  38. 5.74
  39. 0.56
  40. 6.21

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