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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 531 · 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. 1.0.95 × 1.3 =
  2. 2.0.74 × 3.3 =
  3. 3.9.6 × 0.26 =
  4. 4.1.1 × 2.2 =
  5. 5.0.63 × 0.4 =
  6. 6.9.6 × 1.1 =
  7. 7.5.1 × 0.28 =
  8. 8.7.1 × 1.1 =
  9. 9.3.6 × 0.28 =
  10. 10.0.63 × 1.5 =
  11. 11.8.1 × 0.11 =
  12. 12.9.8 × 0.38 =
  13. 13.0.89 × 1.7 =
  14. 14.3.5 × 0.37 =
  15. 15.4.3 × 1.6 =
  16. 16.0.57 × 2.2 =
  17. 17.8.2 × 0.07 =
  18. 18.1.6 × 1.5 =
  19. 19.7.1 × 0.31 =
  20. 20.1.4 × 0.02 =
  21. 21.4.6 × 2.1 =
  22. 22.9.3 × 0.22 =
  23. 23.0.87 × 1.7 =
  24. 24.9.3 × 0.2 =
  25. 25.0.12 × 3.5 =
  26. 26.9.4 × 0.16 =
  27. 27.0.16 × 1.6 =
  28. 28.2.8 × 0.8 =
  29. 29.1.1 × 0.22 =
  30. 30.0.71 × 1.9 =
  31. 31.0.39 × 0.2 =
  32. 32.4.9 × 3.6 =
  33. 33.0.11 × 1.3 =
  34. 34.0.75 × 2.8 =
  35. 35.0.7 × 0.21 =
  36. 36.7.7 × 0.2 =
  37. 37.0.23 × 1.1 =
  38. 38.0.48 × 0.3 =
  39. 39.7.5 × 2.1 =
  40. 40.4.1 × 3.6 =

Answer key

  1. 1.235
  2. 2.442
  3. 2.496
  4. 2.42
  5. 0.252
  6. 10.56
  7. 1.428
  8. 7.81
  9. 1.008
  10. 0.945
  11. 0.891
  12. 3.724
  13. 1.513
  14. 1.295
  15. 6.88
  16. 1.254
  17. 0.574
  18. 2.4
  19. 2.201
  20. 0.028
  21. 9.66
  22. 2.046
  23. 1.479
  24. 1.86
  25. 0.42
  26. 1.504
  27. 0.256
  28. 2.24
  29. 0.242
  30. 1.349
  31. 0.078
  32. 17.64
  33. 0.143
  34. 2.1
  35. 0.147
  36. 1.54
  37. 0.253
  38. 0.144
  39. 15.75
  40. 14.76

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