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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 106 · 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. 1.0.32 × 0.4 =
  2. 2.0.04 × 1.4 =
  3. 3.4.9 × 1.9 =
  4. 4.6.3 × 0.17 =
  5. 5.0.68 × 1.1 =
  6. 6.4.9 × 0.34 =
  7. 7.0.46 × 3.6 =
  8. 8.8.2 × 0.35 =
  9. 9.0.36 × 3.1 =
  10. 10.4.6 × 2.1 =
  11. 11.9.2 × 0.9 =
  12. 12.4.3 × 0.07 =
  13. 13.2.4 × 0.24 =
  14. 14.7.1 × 0.37 =
  15. 15.0.38 × 1.4 =
  16. 16.0.47 × 3.6 =
  17. 17.7.6 × 0.6 =
  18. 18.1.5 × 0.11 =
  19. 19.7.5 × 0.26 =
  20. 20.0.6 × 0.21 =
  21. 21.0.22 × 0.3 =
  22. 22.5.9 × 1.2 =
  23. 23.6.9 × 0.11 =
  24. 24.5.5 × 1.7 =
  25. 25.5.5 × 2.5 =
  26. 26.0.72 × 1.1 =
  27. 27.0.56 × 0.9 =
  28. 28.6.8 × 3.6 =
  29. 29.0.26 × 2.8 =
  30. 30.0.2 × 2.3 =
  31. 31.3.3 × 0.8 =
  32. 32.0.72 × 0.7 =
  33. 33.3.9 × 0.05 =
  34. 34.0.54 × 3.6 =
  35. 35.4.6 × 0.12 =
  36. 36.2.9 × 3.4 =
  37. 37.6.1 × 2.1 =
  38. 38.7.1 × 2.6 =
  39. 39.0.66 × 3.5 =
  40. 40.9.8 × 0.31 =

Answer key

  1. 0.128
  2. 0.056
  3. 9.31
  4. 1.071
  5. 0.748
  6. 1.666
  7. 1.656
  8. 2.87
  9. 1.116
  10. 9.66
  11. 8.28
  12. 0.301
  13. 0.576
  14. 2.627
  15. 0.532
  16. 1.692
  17. 4.56
  18. 0.165
  19. 1.95
  20. 0.126
  21. 0.066
  22. 7.08
  23. 0.759
  24. 9.35
  25. 13.75
  26. 0.792
  27. 0.504
  28. 24.48
  29. 0.728
  30. 0.46
  31. 2.64
  32. 0.504
  33. 0.195
  34. 1.944
  35. 0.552
  36. 9.86
  37. 12.81
  38. 18.46
  39. 2.31
  40. 3.038

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