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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 590 · 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. 1.6.2 × 0.11 =
  2. 2.2.4 × 0.13 =
  3. 3.2.9 × 3.7 =
  4. 4.0.81 × 2.3 =
  5. 5.0.4 × 0.32 =
  6. 6.0.24 × 2.5 =
  7. 7.0.82 × 0.8 =
  8. 8.0.19 × 1.2 =
  9. 9.0.24 × 1.5 =
  10. 10.8.3 × 0.7 =
  11. 11.0.69 × 0.5 =
  12. 12.0.49 × 3.5 =
  13. 13.6.5 × 1.4 =
  14. 14.0.18 × 0.3 =
  15. 15.0.81 × 3.3 =
  16. 16.0.47 × 1.3 =
  17. 17.9.2 × 1.4 =
  18. 18.9.2 × 3.1 =
  19. 19.5.5 × 0.35 =
  20. 20.5.3 × 3.1 =
  21. 21.0.26 × 0.6 =
  22. 22.2.6 × 1.1 =
  23. 23.0.42 × 1.9 =
  24. 24.2.4 × 3.7 =
  25. 25.7.2 × 3.4 =
  26. 26.0.34 × 2.7 =
  27. 27.8.5 × 0.24 =
  28. 28.0.85 × 0.2 =
  29. 29.1.9 × 0.19 =
  30. 30.0.08 × 2.3 =
  31. 31.0.29 × 1.8 =
  32. 32.0.28 × 1.2 =
  33. 33.0.44 × 0.8 =
  34. 34.0.2 × 1.5 =
  35. 35.1.1 × 0.2 =
  36. 36.3.1 × 0.28 =
  37. 37.0.04 × 3.3 =
  38. 38.0.33 × 1.3 =
  39. 39.0.3 × 0.5 =
  40. 40.9.9 × 0.34 =

Answer key

  1. 0.682
  2. 0.312
  3. 10.73
  4. 1.863
  5. 0.128
  6. 0.6
  7. 0.656
  8. 0.228
  9. 0.36
  10. 5.81
  11. 0.345
  12. 1.715
  13. 9.1
  14. 0.054
  15. 2.673
  16. 0.611
  17. 12.88
  18. 28.52
  19. 1.925
  20. 16.43
  21. 0.156
  22. 2.86
  23. 0.798
  24. 8.88
  25. 24.48
  26. 0.918
  27. 2.04
  28. 0.17
  29. 0.361
  30. 0.184
  31. 0.522
  32. 0.336
  33. 0.352
  34. 0.3
  35. 0.22
  36. 0.868
  37. 0.132
  38. 0.429
  39. 0.15
  40. 3.366

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