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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 254 · 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. 1.4.5 × 0.21 =
  2. 2.0.28 × 0.8 =
  3. 3.3.9 × 3.7 =
  4. 4.8.9 × 2.4 =
  5. 5.0.91 × 0.6 =
  6. 6.7.7 × 1.5 =
  7. 7.9.1 × 0.19 =
  8. 8.4.2 × 0.28 =
  9. 9.6.4 × 1.4 =
  10. 10.0.15 × 1.8 =
  11. 11.0.73 × 2.9 =
  12. 12.0.31 × 2.7 =
  13. 13.0.62 × 2.7 =
  14. 14.0.59 × 3.9 =
  15. 15.3.1 × 0.09 =
  16. 16.7.4 × 0.11 =
  17. 17.3.2 × 0.24 =
  18. 18.0.88 × 1.1 =
  19. 19.1.4 × 0.3 =
  20. 20.0.25 × 1.1 =
  21. 21.6.1 × 0.32 =
  22. 22.9.9 × 0.11 =
  23. 23.0.17 × 1.1 =
  24. 24.6.3 × 1.5 =
  25. 25.9.2 × 0.23 =
  26. 26.6.8 × 1.6 =
  27. 27.9.6 × 0.9 =
  28. 28.0.05 × 3.1 =
  29. 29.0.24 × 2.2 =
  30. 30.5.1 × 2.2 =
  31. 31.0.56 × 0.4 =
  32. 32.3.3 × 1.4 =
  33. 33.0.9 × 0.39 =
  34. 34.3.6 × 3.4 =
  35. 35.0.22 × 1.1 =
  36. 36.0.51 × 3.7 =
  37. 37.0.2 × 1.8 =
  38. 38.0.75 × 2.4 =
  39. 39.0.98 × 0.6 =
  40. 40.0.29 × 2.2 =

Answer key

  1. 0.945
  2. 0.224
  3. 14.43
  4. 21.36
  5. 0.546
  6. 11.55
  7. 1.729
  8. 1.176
  9. 8.96
  10. 0.27
  11. 2.117
  12. 0.837
  13. 1.674
  14. 2.301
  15. 0.279
  16. 0.814
  17. 0.768
  18. 0.968
  19. 0.42
  20. 0.275
  21. 1.952
  22. 1.089
  23. 0.187
  24. 9.45
  25. 2.116
  26. 10.88
  27. 8.64
  28. 0.155
  29. 0.528
  30. 11.22
  31. 0.224
  32. 4.62
  33. 0.351
  34. 12.24
  35. 0.242
  36. 1.887
  37. 0.36
  38. 1.8
  39. 0.588
  40. 0.638

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