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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 886 · 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. 1.0.67 × 2.5 =
  2. 2.0.42 × 2.5 =
  3. 3.9.3 × 1.2 =
  4. 4.0.94 × 2.2 =
  5. 5.9.8 × 2.6 =
  6. 6.4.5 × 0.3 =
  7. 7.0.91 × 1.8 =
  8. 8.0.22 × 0.6 =
  9. 9.0.7 × 0.12 =
  10. 10.1.5 × 0.31 =
  11. 11.0.12 × 1.3 =
  12. 12.0.85 × 3.1 =
  13. 13.0.29 × 2.1 =
  14. 14.5.1 × 0.9 =
  15. 15.0.56 × 3.5 =
  16. 16.0.8 × 0.07 =
  17. 17.3.9 × 0.21 =
  18. 18.0.04 × 1.2 =
  19. 19.7.5 × 1.5 =
  20. 20.7.1 × 1.9 =
  21. 21.9.3 × 0.11 =
  22. 22.0.61 × 2.5 =
  23. 23.2.1 × 0.17 =
  24. 24.1.4 × 0.21 =
  25. 25.0.94 × 0.8 =
  26. 26.0.52 × 3.3 =
  27. 27.6.2 × 0.21 =
  28. 28.8.1 × 3.2 =
  29. 29.7.4 × 0.23 =
  30. 30.0.28 × 3.7 =
  31. 31.1.8 × 0.3 =
  32. 32.0.68 × 1.9 =
  33. 33.0.77 × 0.3 =
  34. 34.6.9 × 0.11 =
  35. 35.7.3 × 0.24 =
  36. 36.0.51 × 0.4 =
  37. 37.0.26 × 0.6 =
  38. 38.1.1 × 0.24 =
  39. 39.0.39 × 3.1 =
  40. 40.7.3 × 1.1 =

Answer key

  1. 1.675
  2. 1.05
  3. 11.16
  4. 2.068
  5. 25.48
  6. 1.35
  7. 1.638
  8. 0.132
  9. 0.084
  10. 0.465
  11. 0.156
  12. 2.635
  13. 0.609
  14. 4.59
  15. 1.96
  16. 0.056
  17. 0.819
  18. 0.048
  19. 11.25
  20. 13.49
  21. 1.023
  22. 1.525
  23. 0.357
  24. 0.294
  25. 0.752
  26. 1.716
  27. 1.302
  28. 25.92
  29. 1.702
  30. 1.036
  31. 0.54
  32. 1.292
  33. 0.231
  34. 0.759
  35. 1.752
  36. 0.204
  37. 0.156
  38. 0.264
  39. 1.209
  40. 8.03

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