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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 295 · 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. 1.0.51 × 2.9 =
  2. 2.0.81 × 3.6 =
  3. 3.9.1 × 2.5 =
  4. 4.1.5 × 1.8 =
  5. 5.5.8 × 0.02 =
  6. 6.0.09 × 0.2 =
  7. 7.4.9 × 3.9 =
  8. 8.4.3 × 0.02 =
  9. 9.0.6 × 0.17 =
  10. 10.1.2 × 3.3 =
  11. 11.0.75 × 0.7 =
  12. 12.8.6 × 0.23 =
  13. 13.9.8 × 0.06 =
  14. 14.0.8 × 3.6 =
  15. 15.1.1 × 2.6 =
  16. 16.0.26 × 1.7 =
  17. 17.5.9 × 3.4 =
  18. 18.0.65 × 1.9 =
  19. 19.8.9 × 1.1 =
  20. 20.0.11 × 3.8 =
  21. 21.0.74 × 1.6 =
  22. 22.1.1 × 2.4 =
  23. 23.0.25 × 1.8 =
  24. 24.9.8 × 0.15 =
  25. 25.0.03 × 0.6 =
  26. 26.0.97 × 1.5 =
  27. 27.3.1 × 0.13 =
  28. 28.6.3 × 0.4 =
  29. 29.3.7 × 0.8 =
  30. 30.3.8 × 0.22 =
  31. 31.0.2 × 0.11 =
  32. 32.7.9 × 1.4 =
  33. 33.0.68 × 2.4 =
  34. 34.0.6 × 0.21 =
  35. 35.0.69 × 2.7 =
  36. 36.0.06 × 0.5 =
  37. 37.5.1 × 0.28 =
  38. 38.1.5 × 1.1 =
  39. 39.8.1 × 3.2 =
  40. 40.9.2 × 3.5 =

Answer key

  1. 1.479
  2. 2.916
  3. 22.75
  4. 2.7
  5. 0.116
  6. 0.018
  7. 19.11
  8. 0.086
  9. 0.102
  10. 3.96
  11. 0.525
  12. 1.978
  13. 0.588
  14. 2.88
  15. 2.86
  16. 0.442
  17. 20.06
  18. 1.235
  19. 9.79
  20. 0.418
  21. 1.184
  22. 2.64
  23. 0.45
  24. 1.47
  25. 0.018
  26. 1.455
  27. 0.403
  28. 2.52
  29. 2.96
  30. 0.836
  31. 0.022
  32. 11.06
  33. 1.632
  34. 0.126
  35. 1.863
  36. 0.03
  37. 1.428
  38. 1.65
  39. 25.92
  40. 32.2

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