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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 686 · 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. 1.4.1 × 0.13 =
  2. 2.4.9 × 0.03 =
  3. 3.0.69 × 1.4 =
  4. 4.0.71 × 3.5 =
  5. 5.0.44 × 1.1 =
  6. 6.9.8 × 3.7 =
  7. 7.0.33 × 2.1 =
  8. 8.0.21 × 1.9 =
  9. 9.8.9 × 2.2 =
  10. 10.9.4 × 0.05 =
  11. 11.0.63 × 3.2 =
  12. 12.0.7 × 0.23 =
  13. 13.8.3 × 0.07 =
  14. 14.9.4 × 0.38 =
  15. 15.7.1 × 0.02 =
  16. 16.9.5 × 0.23 =
  17. 17.3.5 × 3.8 =
  18. 18.1.3 × 0.03 =
  19. 19.2.1 × 0.6 =
  20. 20.0.9 × 0.11 =
  21. 21.0.7 × 0.36 =
  22. 22.0.65 × 2.6 =
  23. 23.2.2 × 1.2 =
  24. 24.7.5 × 0.02 =
  25. 25.0.35 × 1.1 =
  26. 26.1.2 × 0.38 =
  27. 27.0.51 × 3.6 =
  28. 28.6.5 × 2.4 =
  29. 29.0.67 × 3.2 =
  30. 30.3.2 × 0.26 =
  31. 31.0.41 × 1.1 =
  32. 32.6.5 × 3.2 =
  33. 33.0.4 × 0.3 =
  34. 34.9.2 × 0.02 =
  35. 35.0.61 × 0.4 =
  36. 36.0.22 × 3.9 =
  37. 37.0.8 × 3.9 =
  38. 38.0.69 × 0.9 =
  39. 39.0.69 × 1.5 =
  40. 40.0.81 × 3.3 =

Answer key

  1. 0.533
  2. 0.147
  3. 0.966
  4. 2.485
  5. 0.484
  6. 36.26
  7. 0.693
  8. 0.399
  9. 19.58
  10. 0.47
  11. 2.016
  12. 0.161
  13. 0.581
  14. 3.572
  15. 0.142
  16. 2.185
  17. 13.3
  18. 0.039
  19. 1.26
  20. 0.099
  21. 0.252
  22. 1.69
  23. 2.64
  24. 0.15
  25. 0.385
  26. 0.456
  27. 1.836
  28. 15.6
  29. 2.144
  30. 0.832
  31. 0.451
  32. 20.8
  33. 0.12
  34. 0.184
  35. 0.244
  36. 0.858
  37. 3.12
  38. 0.621
  39. 1.035
  40. 2.673

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