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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 220 · 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. 1.0.19 × 0.4 =
  2. 2.0.7 × 2.7 =
  3. 3.2.2 × 2.2 =
  4. 4.0.18 × 3.1 =
  5. 5.8.1 × 1.2 =
  6. 6.0.14 × 0.4 =
  7. 7.6.9 × 0.9 =
  8. 8.8.6 × 0.08 =
  9. 9.4.4 × 0.18 =
  10. 10.0.19 × 0.5 =
  11. 11.4.5 × 2.5 =
  12. 12.0.15 × 3.3 =
  13. 13.7.4 × 0.16 =
  14. 14.2.3 × 3.7 =
  15. 15.6.4 × 2.4 =
  16. 16.1.7 × 2.1 =
  17. 17.8.8 × 1.1 =
  18. 18.1.4 × 0.11 =
  19. 19.8.8 × 0.2 =
  20. 20.0.87 × 3.3 =
  21. 21.1.5 × 0.07 =
  22. 22.0.05 × 3.3 =
  23. 23.0.02 × 1.7 =
  24. 24.0.11 × 3.7 =
  25. 25.0.53 × 0.5 =
  26. 26.0.86 × 0.2 =
  27. 27.9.3 × 2.1 =
  28. 28.8.5 × 0.31 =
  29. 29.0.81 × 0.8 =
  30. 30.0.12 × 1.2 =
  31. 31.6.8 × 0.11 =
  32. 32.0.28 × 3.4 =
  33. 33.4.8 × 0.9 =
  34. 34.0.63 × 3.5 =
  35. 35.0.86 × 1.3 =
  36. 36.4.8 × 0.23 =
  37. 37.6.8 × 0.25 =
  38. 38.0.6 × 0.06 =
  39. 39.0.36 × 1.8 =
  40. 40.2.4 × 0.35 =

Answer key

  1. 0.076
  2. 1.89
  3. 4.84
  4. 0.558
  5. 9.72
  6. 0.056
  7. 6.21
  8. 0.688
  9. 0.792
  10. 0.095
  11. 11.25
  12. 0.495
  13. 1.184
  14. 8.51
  15. 15.36
  16. 3.57
  17. 9.68
  18. 0.154
  19. 1.76
  20. 2.871
  21. 0.105
  22. 0.165
  23. 0.034
  24. 0.407
  25. 0.265
  26. 0.172
  27. 19.53
  28. 2.635
  29. 0.648
  30. 0.144
  31. 0.748
  32. 0.952
  33. 4.32
  34. 2.205
  35. 1.118
  36. 1.104
  37. 1.7
  38. 0.036
  39. 0.648
  40. 0.84

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