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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 78 · 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. 1.9.8 × 2.5 =
  2. 2.2.6 × 2.6 =
  3. 3.0.84 × 1.5 =
  4. 4.6.1 × 0.08 =
  5. 5.7.3 × 0.32 =
  6. 6.3.7 × 0.16 =
  7. 7.0.21 × 1.4 =
  8. 8.6.7 × 0.16 =
  9. 9.0.61 × 0.3 =
  10. 10.1.7 × 2.1 =
  11. 11.6.8 × 0.12 =
  12. 12.0.08 × 0.8 =
  13. 13.0.44 × 0.4 =
  14. 14.3.6 × 0.13 =
  15. 15.0.27 × 0.3 =
  16. 16.0.23 × 1.1 =
  17. 17.0.12 × 2.1 =
  18. 18.6.4 × 0.6 =
  19. 19.4.3 × 0.25 =
  20. 20.5.7 × 2.4 =
  21. 21.2.2 × 3.4 =
  22. 22.1.1 × 1.7 =
  23. 23.0.75 × 1.4 =
  24. 24.7.6 × 1.8 =
  25. 25.1.3 × 2.1 =
  26. 26.0.78 × 3.3 =
  27. 27.2.7 × 1.2 =
  28. 28.7.1 × 0.11 =
  29. 29.1.9 × 0.07 =
  30. 30.0.32 × 2.8 =
  31. 31.6.8 × 0.09 =
  32. 32.0.11 × 3.2 =
  33. 33.2.7 × 0.2 =
  34. 34.0.26 × 0.8 =
  35. 35.0.17 × 2.5 =
  36. 36.0.51 × 3.2 =
  37. 37.0.81 × 0.2 =
  38. 38.0.52 × 2.1 =
  39. 39.6.2 × 0.09 =
  40. 40.9.3 × 0.08 =

Answer key

  1. 24.5
  2. 6.76
  3. 1.26
  4. 0.488
  5. 2.336
  6. 0.592
  7. 0.294
  8. 1.072
  9. 0.183
  10. 3.57
  11. 0.816
  12. 0.064
  13. 0.176
  14. 0.468
  15. 0.081
  16. 0.253
  17. 0.252
  18. 3.84
  19. 1.075
  20. 13.68
  21. 7.48
  22. 1.87
  23. 1.05
  24. 13.68
  25. 2.73
  26. 2.574
  27. 3.24
  28. 0.781
  29. 0.133
  30. 0.896
  31. 0.612
  32. 0.352
  33. 0.54
  34. 0.208
  35. 0.425
  36. 1.632
  37. 0.162
  38. 1.092
  39. 0.558
  40. 0.744

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