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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 366 · 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. 1.1.5 × 0.11 =
  2. 2.0.14 × 0.4 =
  3. 3.9.1 × 3.3 =
  4. 4.3.4 × 2.8 =
  5. 5.2.1 × 0.31 =
  6. 6.0.9 × 0.03 =
  7. 7.9.8 × 0.25 =
  8. 8.3.4 × 2.7 =
  9. 9.0.26 × 1.3 =
  10. 10.0.6 × 0.2 =
  11. 11.0.41 × 3.7 =
  12. 12.0.61 × 0.8 =
  13. 13.0.76 × 2.5 =
  14. 14.0.05 × 2.1 =
  15. 15.0.97 × 1.9 =
  16. 16.8.1 × 0.7 =
  17. 17.0.07 × 3.3 =
  18. 18.8.3 × 0.13 =
  19. 19.7.7 × 1.1 =
  20. 20.0.08 × 0.3 =
  21. 21.1.8 × 0.3 =
  22. 22.3.1 × 0.03 =
  23. 23.2.3 × 0.05 =
  24. 24.0.38 × 1.9 =
  25. 25.9.7 × 0.12 =
  26. 26.2.4 × 0.18 =
  27. 27.3.1 × 2.3 =
  28. 28.0.09 × 3.1 =
  29. 29.0.81 × 1.5 =
  30. 30.8.9 × 2.1 =
  31. 31.3.5 × 0.35 =
  32. 32.0.86 × 0.3 =
  33. 33.5.1 × 1.9 =
  34. 34.0.2 × 1.6 =
  35. 35.0.27 × 2.5 =
  36. 36.2.8 × 1.4 =
  37. 37.5.1 × 0.8 =
  38. 38.1.3 × 0.6 =
  39. 39.3.8 × 0.31 =
  40. 40.0.57 × 0.2 =

Answer key

  1. 0.165
  2. 0.056
  3. 30.03
  4. 9.52
  5. 0.651
  6. 0.027
  7. 2.45
  8. 9.18
  9. 0.338
  10. 0.12
  11. 1.517
  12. 0.488
  13. 1.9
  14. 0.105
  15. 1.843
  16. 5.67
  17. 0.231
  18. 1.079
  19. 8.47
  20. 0.024
  21. 0.54
  22. 0.093
  23. 0.115
  24. 0.722
  25. 1.164
  26. 0.432
  27. 7.13
  28. 0.279
  29. 1.215
  30. 18.69
  31. 1.225
  32. 0.258
  33. 9.69
  34. 0.32
  35. 0.675
  36. 3.92
  37. 4.08
  38. 0.78
  39. 1.178
  40. 0.114

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