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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 772 · 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. 1.0.39 × 3.1 =
  2. 2.0.11 × 3.1 =
  3. 3.5.3 × 0.03 =
  4. 4.2.8 × 1.9 =
  5. 5.3.9 × 3.9 =
  6. 6.0.57 × 2.5 =
  7. 7.2.1 × 3.1 =
  8. 8.0.51 × 1.1 =
  9. 9.8.7 × 0.27 =
  10. 10.2.8 × 0.6 =
  11. 11.8.1 × 1.5 =
  12. 12.0.66 × 2.1 =
  13. 13.0.3 × 0.3 =
  14. 14.0.26 × 3.3 =
  15. 15.0.89 × 1.4 =
  16. 16.0.15 × 0.3 =
  17. 17.0.27 × 1.1 =
  18. 18.3.3 × 0.6 =
  19. 19.8.3 × 0.08 =
  20. 20.0.2 × 1.9 =
  21. 21.0.6 × 0.05 =
  22. 22.0.99 × 3.8 =
  23. 23.5.5 × 0.4 =
  24. 24.0.83 × 0.3 =
  25. 25.9.6 × 0.13 =
  26. 26.3.4 × 0.13 =
  27. 27.0.56 × 1.7 =
  28. 28.0.55 × 2.3 =
  29. 29.8.6 × 3.6 =
  30. 30.0.63 × 2.5 =
  31. 31.9.3 × 0.21 =
  32. 32.5.3 × 0.8 =
  33. 33.0.59 × 0.6 =
  34. 34.0.07 × 3.9 =
  35. 35.0.74 × 2.9 =
  36. 36.6.1 × 1.1 =
  37. 37.0.65 × 0.9 =
  38. 38.0.41 × 1.4 =
  39. 39.0.09 × 0.9 =
  40. 40.0.12 × 3.8 =

Answer key

  1. 1.209
  2. 0.341
  3. 0.159
  4. 5.32
  5. 15.21
  6. 1.425
  7. 6.51
  8. 0.561
  9. 2.349
  10. 1.68
  11. 12.15
  12. 1.386
  13. 0.09
  14. 0.858
  15. 1.246
  16. 0.045
  17. 0.297
  18. 1.98
  19. 0.664
  20. 0.38
  21. 0.03
  22. 3.762
  23. 2.2
  24. 0.249
  25. 1.248
  26. 0.442
  27. 0.952
  28. 1.265
  29. 30.96
  30. 1.575
  31. 1.953
  32. 4.24
  33. 0.354
  34. 0.273
  35. 2.146
  36. 6.71
  37. 0.585
  38. 0.574
  39. 0.081
  40. 0.456

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