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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 219 · 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. 1.0.05 × 0.3 =
  2. 2.0.04 × 2.1 =
  3. 3.0.15 × 0.8 =
  4. 4.0.3 × 1.8 =
  5. 5.4.5 × 0.12 =
  6. 6.0.43 × 1.1 =
  7. 7.0.98 × 1.5 =
  8. 8.0.08 × 2.9 =
  9. 9.0.49 × 2.1 =
  10. 10.0.15 × 1.6 =
  11. 11.0.09 × 3.3 =
  12. 12.4.9 × 0.8 =
  13. 13.0.69 × 1.6 =
  14. 14.0.91 × 1.4 =
  15. 15.0.34 × 0.3 =
  16. 16.0.26 × 2.2 =
  17. 17.0.66 × 0.6 =
  18. 18.0.13 × 0.2 =
  19. 19.0.25 × 1.6 =
  20. 20.6.3 × 0.37 =
  21. 21.0.26 × 0.4 =
  22. 22.4.7 × 0.36 =
  23. 23.2.5 × 0.32 =
  24. 24.0.24 × 0.7 =
  25. 25.0.03 × 1.1 =
  26. 26.7.3 × 2.8 =
  27. 27.7.8 × 3.9 =
  28. 28.0.5 × 2.6 =
  29. 29.9.4 × 1.1 =
  30. 30.4.1 × 0.32 =
  31. 31.4.7 × 0.11 =
  32. 32.0.91 × 0.2 =
  33. 33.4.5 × 2.9 =
  34. 34.0.83 × 1.6 =
  35. 35.0.97 × 1.5 =
  36. 36.0.27 × 0.3 =
  37. 37.0.37 × 0.6 =
  38. 38.0.04 × 0.3 =
  39. 39.1.5 × 0.18 =
  40. 40.0.16 × 2.2 =

Answer key

  1. 0.015
  2. 0.084
  3. 0.12
  4. 0.54
  5. 0.54
  6. 0.473
  7. 1.47
  8. 0.232
  9. 1.029
  10. 0.24
  11. 0.297
  12. 3.92
  13. 1.104
  14. 1.274
  15. 0.102
  16. 0.572
  17. 0.396
  18. 0.026
  19. 0.4
  20. 2.331
  21. 0.104
  22. 1.692
  23. 0.8
  24. 0.168
  25. 0.033
  26. 20.44
  27. 30.42
  28. 1.3
  29. 10.34
  30. 1.312
  31. 0.517
  32. 0.182
  33. 13.05
  34. 1.328
  35. 1.455
  36. 0.081
  37. 0.222
  38. 0.012
  39. 0.27
  40. 0.352

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