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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 429 · 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. 1.4.2 × 1.5 =
  2. 2.0.65 × 3.3 =
  3. 3.1.5 × 0.5 =
  4. 4.0.6 × 0.06 =
  5. 5.9.7 × 2.1 =
  6. 6.8.4 × 2.2 =
  7. 7.0.8 × 0.7 =
  8. 8.0.65 × 0.3 =
  9. 9.5.5 × 2.7 =
  10. 10.0.73 × 0.7 =
  11. 11.5.1 × 0.24 =
  12. 12.3.3 × 3.1 =
  13. 13.0.46 × 3.9 =
  14. 14.0.07 × 3.9 =
  15. 15.0.21 × 3.5 =
  16. 16.1.2 × 0.36 =
  17. 17.4.8 × 0.34 =
  18. 18.5.1 × 3.8 =
  19. 19.0.89 × 3.1 =
  20. 20.0.36 × 1.1 =
  21. 21.6.4 × 0.24 =
  22. 22.0.98 × 0.2 =
  23. 23.5.3 × 1.1 =
  24. 24.3.4 × 0.02 =
  25. 25.8.3 × 2.8 =
  26. 26.0.08 × 3.9 =
  27. 27.0.39 × 3.9 =
  28. 28.2.5 × 0.07 =
  29. 29.9.2 × 3.9 =
  30. 30.8.1 × 0.18 =
  31. 31.0.02 × 0.7 =
  32. 32.4.2 × 1.9 =
  33. 33.7.4 × 0.11 =
  34. 34.0.73 × 1.6 =
  35. 35.6.6 × 2.8 =
  36. 36.1.5 × 0.09 =
  37. 37.8.8 × 2.9 =
  38. 38.0.35 × 0.5 =
  39. 39.0.04 × 0.2 =
  40. 40.3.1 × 3.7 =

Answer key

  1. 6.3
  2. 2.145
  3. 0.75
  4. 0.036
  5. 20.37
  6. 18.48
  7. 0.56
  8. 0.195
  9. 14.85
  10. 0.511
  11. 1.224
  12. 10.23
  13. 1.794
  14. 0.273
  15. 0.735
  16. 0.432
  17. 1.632
  18. 19.38
  19. 2.759
  20. 0.396
  21. 1.536
  22. 0.196
  23. 5.83
  24. 0.068
  25. 23.24
  26. 0.312
  27. 1.521
  28. 0.175
  29. 35.88
  30. 1.458
  31. 0.014
  32. 7.98
  33. 0.814
  34. 1.168
  35. 18.48
  36. 0.135
  37. 25.52
  38. 0.175
  39. 0.008
  40. 11.47

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