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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 640 · 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. 1.2.7 × 0.11 =
  2. 2.0.95 × 0.3 =
  3. 3.4.1 × 2.4 =
  4. 4.0.4 × 3.7 =
  5. 5.0.11 × 3.3 =
  6. 6.0.06 × 3.5 =
  7. 7.0.39 × 3.2 =
  8. 8.0.41 × 2.8 =
  9. 9.4.8 × 0.39 =
  10. 10.0.04 × 2.1 =
  11. 11.1.3 × 0.31 =
  12. 12.0.74 × 3.1 =
  13. 13.2.9 × 1.5 =
  14. 14.0.16 × 0.8 =
  15. 15.0.71 × 3.9 =
  16. 16.0.02 × 1.2 =
  17. 17.5.2 × 0.25 =
  18. 18.0.6 × 0.17 =
  19. 19.0.84 × 1.3 =
  20. 20.7.9 × 2.3 =
  21. 21.0.17 × 2.9 =
  22. 22.5.1 × 2.1 =
  23. 23.0.2 × 0.25 =
  24. 24.0.05 × 1.6 =
  25. 25.0.71 × 1.9 =
  26. 26.4.8 × 0.38 =
  27. 27.0.98 × 3.4 =
  28. 28.7.7 × 0.37 =
  29. 29.6.8 × 2.7 =
  30. 30.0.5 × 1.5 =
  31. 31.7.7 × 0.28 =
  32. 32.1.5 × 0.12 =
  33. 33.5.7 × 1.1 =
  34. 34.0.86 × 3.9 =
  35. 35.0.77 × 1.9 =
  36. 36.8.1 × 0.24 =
  37. 37.9.1 × 0.39 =
  38. 38.2.6 × 2.5 =
  39. 39.0.23 × 3.4 =
  40. 40.0.67 × 0.9 =

Answer key

  1. 0.297
  2. 0.285
  3. 9.84
  4. 1.48
  5. 0.363
  6. 0.21
  7. 1.248
  8. 1.148
  9. 1.872
  10. 0.084
  11. 0.403
  12. 2.294
  13. 4.35
  14. 0.128
  15. 2.769
  16. 0.024
  17. 1.3
  18. 0.102
  19. 1.092
  20. 18.17
  21. 0.493
  22. 10.71
  23. 0.05
  24. 0.08
  25. 1.349
  26. 1.824
  27. 3.332
  28. 2.849
  29. 18.36
  30. 0.75
  31. 2.156
  32. 0.18
  33. 6.27
  34. 3.354
  35. 1.463
  36. 1.944
  37. 3.549
  38. 6.5
  39. 0.782
  40. 0.603

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