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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 325 · 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. 1.1.8 × 0.31 =
  2. 2.0.44 × 0.3 =
  3. 3.0.33 × 1.9 =
  4. 4.6.1 × 2.8 =
  5. 5.0.88 × 3.7 =
  6. 6.5.7 × 0.2 =
  7. 7.9.2 × 0.6 =
  8. 8.6.6 × 0.14 =
  9. 9.0.3 × 0.38 =
  10. 10.0.44 × 1.4 =
  11. 11.0.25 × 2.8 =
  12. 12.6.2 × 0.28 =
  13. 13.0.39 × 3.1 =
  14. 14.0.76 × 3.2 =
  15. 15.1.7 × 0.24 =
  16. 16.0.48 × 1.7 =
  17. 17.2.6 × 0.33 =
  18. 18.6.4 × 0.11 =
  19. 19.8.4 × 1.1 =
  20. 20.0.2 × 3.4 =
  21. 21.0.42 × 3.3 =
  22. 22.0.15 × 0.8 =
  23. 23.0.17 × 2.2 =
  24. 24.0.31 × 0.4 =
  25. 25.0.11 × 2.5 =
  26. 26.9.8 × 3.1 =
  27. 27.0.43 × 2.1 =
  28. 28.9.9 × 0.4 =
  29. 29.7.1 × 0.5 =
  30. 30.0.02 × 3.9 =
  31. 31.4.8 × 0.8 =
  32. 32.0.65 × 2.7 =
  33. 33.0.2 × 3.1 =
  34. 34.0.95 × 1.2 =
  35. 35.0.09 × 2.6 =
  36. 36.0.18 × 1.8 =
  37. 37.0.85 × 2.2 =
  38. 38.1.5 × 0.11 =
  39. 39.0.9 × 0.5 =
  40. 40.2.4 × 1.1 =

Answer key

  1. 0.558
  2. 0.132
  3. 0.627
  4. 17.08
  5. 3.256
  6. 1.14
  7. 5.52
  8. 0.924
  9. 0.114
  10. 0.616
  11. 0.7
  12. 1.736
  13. 1.209
  14. 2.432
  15. 0.408
  16. 0.816
  17. 0.858
  18. 0.704
  19. 9.24
  20. 0.68
  21. 1.386
  22. 0.12
  23. 0.374
  24. 0.124
  25. 0.275
  26. 30.38
  27. 0.903
  28. 3.96
  29. 3.55
  30. 0.078
  31. 3.84
  32. 1.755
  33. 0.62
  34. 1.14
  35. 0.234
  36. 0.324
  37. 1.87
  38. 0.165
  39. 0.45
  40. 2.64

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