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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 571 · 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. 1.7.7 × 2.4 =
  2. 2.6.2 × 3.4 =
  3. 3.1.1 × 1.2 =
  4. 4.0.25 × 3.7 =
  5. 5.0.21 × 1.1 =
  6. 6.9.8 × 0.19 =
  7. 7.0.37 × 0.3 =
  8. 8.0.59 × 0.6 =
  9. 9.0.6 × 0.34 =
  10. 10.1.4 × 0.03 =
  11. 11.7.1 × 1.1 =
  12. 12.0.48 × 2.2 =
  13. 13.0.79 × 1.2 =
  14. 14.0.51 × 1.1 =
  15. 15.0.25 × 2.8 =
  16. 16.9.1 × 1.7 =
  17. 17.0.75 × 0.9 =
  18. 18.9.3 × 0.27 =
  19. 19.5.6 × 0.12 =
  20. 20.5.1 × 0.06 =
  21. 21.4.6 × 0.11 =
  22. 22.0.17 × 2.1 =
  23. 23.5.6 × 3.6 =
  24. 24.0.72 × 3.1 =
  25. 25.1.4 × 2.2 =
  26. 26.3.1 × 3.1 =
  27. 27.2.4 × 0.21 =
  28. 28.0.81 × 0.4 =
  29. 29.0.61 × 1.5 =
  30. 30.1.8 × 0.14 =
  31. 31.3.4 × 3.7 =
  32. 32.1.8 × 0.7 =
  33. 33.9.1 × 0.35 =
  34. 34.0.47 × 2.8 =
  35. 35.1.1 × 0.26 =
  36. 36.0.7 × 2.6 =
  37. 37.8.6 × 1.9 =
  38. 38.0.19 × 1.7 =
  39. 39.4.7 × 0.32 =
  40. 40.0.98 × 0.7 =

Answer key

  1. 18.48
  2. 21.08
  3. 1.32
  4. 0.925
  5. 0.231
  6. 1.862
  7. 0.111
  8. 0.354
  9. 0.204
  10. 0.042
  11. 7.81
  12. 1.056
  13. 0.948
  14. 0.561
  15. 0.7
  16. 15.47
  17. 0.675
  18. 2.511
  19. 0.672
  20. 0.306
  21. 0.506
  22. 0.357
  23. 20.16
  24. 2.232
  25. 3.08
  26. 9.61
  27. 0.504
  28. 0.324
  29. 0.915
  30. 0.252
  31. 12.58
  32. 1.26
  33. 3.185
  34. 1.316
  35. 0.286
  36. 1.82
  37. 16.34
  38. 0.323
  39. 1.504
  40. 0.686

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