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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 491 · 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. 1.3.1 × 0.34 =
  2. 2.0.18 × 2.8 =
  3. 3.4.1 × 3.4 =
  4. 4.0.81 × 3.4 =
  5. 5.0.3 × 3.1 =
  6. 6.2.9 × 1.9 =
  7. 7.1.6 × 2.6 =
  8. 8.0.11 × 2.9 =
  9. 9.0.87 × 0.2 =
  10. 10.1.3 × 0.31 =
  11. 11.0.94 × 0.5 =
  12. 12.0.44 × 1.3 =
  13. 13.1.5 × 1.2 =
  14. 14.6.4 × 2.4 =
  15. 15.0.54 × 1.4 =
  16. 16.2.1 × 3.2 =
  17. 17.1.3 × 1.9 =
  18. 18.5.8 × 0.27 =
  19. 19.0.91 × 2.4 =
  20. 20.0.78 × 1.3 =
  21. 21.0.21 × 0.8 =
  22. 22.5.9 × 1.1 =
  23. 23.0.57 × 2.3 =
  24. 24.2.5 × 0.33 =
  25. 25.1.3 × 3.1 =
  26. 26.0.28 × 1.2 =
  27. 27.0.79 × 1.3 =
  28. 28.8.3 × 1.7 =
  29. 29.0.29 × 1.1 =
  30. 30.6.9 × 0.25 =
  31. 31.0.81 × 1.5 =
  32. 32.0.15 × 2.2 =
  33. 33.5.1 × 3.1 =
  34. 34.0.83 × 1.1 =
  35. 35.0.21 × 2.1 =
  36. 36.0.77 × 2.3 =
  37. 37.8.3 × 1.5 =
  38. 38.0.4 × 2.5 =
  39. 39.9.1 × 0.21 =
  40. 40.1.8 × 2.4 =

Answer key

  1. 1.054
  2. 0.504
  3. 13.94
  4. 2.754
  5. 0.93
  6. 5.51
  7. 4.16
  8. 0.319
  9. 0.174
  10. 0.403
  11. 0.47
  12. 0.572
  13. 1.8
  14. 15.36
  15. 0.756
  16. 6.72
  17. 2.47
  18. 1.566
  19. 2.184
  20. 1.014
  21. 0.168
  22. 6.49
  23. 1.311
  24. 0.825
  25. 4.03
  26. 0.336
  27. 1.027
  28. 14.11
  29. 0.319
  30. 1.725
  31. 1.215
  32. 0.33
  33. 15.81
  34. 0.913
  35. 0.441
  36. 1.771
  37. 12.45
  38. 1
  39. 1.911
  40. 4.32

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