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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 22 · 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. 1.8.1 × 1.1 =
  2. 2.2.1 × 0.4 =
  3. 3.1.1 × 0.04 =
  4. 4.1.6 × 0.7 =
  5. 5.0.42 × 0.6 =
  6. 6.5.7 × 0.32 =
  7. 7.0.18 × 3.3 =
  8. 8.4.5 × 2.3 =
  9. 9.0.54 × 3.8 =
  10. 10.0.19 × 3.9 =
  11. 11.4.3 × 2.2 =
  12. 12.6.9 × 0.2 =
  13. 13.0.49 × 2.5 =
  14. 14.6.8 × 0.7 =
  15. 15.9.1 × 0.35 =
  16. 16.0.03 × 1.5 =
  17. 17.2.5 × 2.4 =
  18. 18.9.8 × 0.32 =
  19. 19.0.71 × 1.2 =
  20. 20.9.6 × 2.8 =
  21. 21.0.36 × 1.7 =
  22. 22.0.21 × 1.2 =
  23. 23.4.4 × 3.3 =
  24. 24.8.8 × 1.2 =
  25. 25.0.53 × 3.6 =
  26. 26.6.3 × 2.9 =
  27. 27.5.9 × 1.4 =
  28. 28.1.6 × 0.23 =
  29. 29.4.3 × 0.25 =
  30. 30.9.2 × 0.09 =
  31. 31.0.7 × 0.2 =
  32. 32.4.3 × 3.5 =
  33. 33.0.31 × 2.4 =
  34. 34.8.9 × 0.12 =
  35. 35.9.8 × 0.11 =
  36. 36.0.35 × 0.7 =
  37. 37.0.56 × 1.8 =
  38. 38.2.4 × 2.9 =
  39. 39.3.1 × 0.31 =
  40. 40.6.8 × 2.6 =

Answer key

  1. 8.91
  2. 0.84
  3. 0.044
  4. 1.12
  5. 0.252
  6. 1.824
  7. 0.594
  8. 10.35
  9. 2.052
  10. 0.741
  11. 9.46
  12. 1.38
  13. 1.225
  14. 4.76
  15. 3.185
  16. 0.045
  17. 6
  18. 3.136
  19. 0.852
  20. 26.88
  21. 0.612
  22. 0.252
  23. 14.52
  24. 10.56
  25. 1.908
  26. 18.27
  27. 8.26
  28. 0.368
  29. 1.075
  30. 0.828
  31. 0.14
  32. 15.05
  33. 0.744
  34. 1.068
  35. 1.078
  36. 0.245
  37. 1.008
  38. 6.96
  39. 0.961
  40. 17.68

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