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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 764 · 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. 1.0.31 × 1.9 =
  2. 2.7.1 × 2.1 =
  3. 3.5.1 × 3.9 =
  4. 4.0.42 × 1.7 =
  5. 5.0.21 × 2.7 =
  6. 6.0.58 × 2.3 =
  7. 7.0.79 × 3.5 =
  8. 8.0.23 × 1.3 =
  9. 9.0.31 × 1.9 =
  10. 10.6.3 × 1.1 =
  11. 11.7.6 × 3.1 =
  12. 12.9.4 × 1.7 =
  13. 13.0.28 × 1.3 =
  14. 14.4.3 × 1.7 =
  15. 15.0.42 × 0.8 =
  16. 16.0.6 × 2.3 =
  17. 17.9.2 × 3.5 =
  18. 18.0.81 × 2.1 =
  19. 19.5.2 × 3.5 =
  20. 20.0.81 × 2.1 =
  21. 21.1.4 × 0.08 =
  22. 22.0.08 × 1.6 =
  23. 23.4.8 × 3.7 =
  24. 24.0.34 × 2.1 =
  25. 25.0.56 × 2.2 =
  26. 26.0.86 × 1.2 =
  27. 27.6.1 × 2.8 =
  28. 28.0.74 × 1.1 =
  29. 29.7.1 × 1.2 =
  30. 30.7.4 × 0.5 =
  31. 31.8.1 × 0.7 =
  32. 32.0.85 × 1.1 =
  33. 33.1.6 × 0.25 =
  34. 34.1.8 × 0.23 =
  35. 35.9.5 × 3.3 =
  36. 36.0.41 × 0.9 =
  37. 37.1.8 × 0.3 =
  38. 38.2.6 × 2.5 =
  39. 39.8.7 × 0.12 =
  40. 40.9.2 × 0.36 =

Answer key

  1. 0.589
  2. 14.91
  3. 19.89
  4. 0.714
  5. 0.567
  6. 1.334
  7. 2.765
  8. 0.299
  9. 0.589
  10. 6.93
  11. 23.56
  12. 15.98
  13. 0.364
  14. 7.31
  15. 0.336
  16. 1.38
  17. 32.2
  18. 1.701
  19. 18.2
  20. 1.701
  21. 0.112
  22. 0.128
  23. 17.76
  24. 0.714
  25. 1.232
  26. 1.032
  27. 17.08
  28. 0.814
  29. 8.52
  30. 3.7
  31. 5.67
  32. 0.935
  33. 0.4
  34. 0.414
  35. 31.35
  36. 0.369
  37. 0.54
  38. 6.5
  39. 1.044
  40. 3.312

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