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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 930 · 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. 1.0.54 × 1.5 =
  2. 2.1.2 × 0.06 =
  3. 3.9.5 × 0.04 =
  4. 4.9.6 × 0.14 =
  5. 5.7.6 × 3.3 =
  6. 6.1.9 × 0.09 =
  7. 7.0.46 × 1.2 =
  8. 8.0.81 × 1.6 =
  9. 9.0.06 × 2.6 =
  10. 10.6.8 × 0.08 =
  11. 11.4.9 × 0.25 =
  12. 12.0.86 × 2.5 =
  13. 13.0.27 × 2.9 =
  14. 14.0.22 × 2.1 =
  15. 15.5.2 × 1.8 =
  16. 16.0.49 × 2.1 =
  17. 17.9.7 × 0.27 =
  18. 18.0.93 × 0.3 =
  19. 19.8.5 × 0.13 =
  20. 20.0.18 × 1.7 =
  21. 21.6.5 × 0.31 =
  22. 22.5.9 × 0.4 =
  23. 23.4.3 × 3.9 =
  24. 24.5.3 × 0.29 =
  25. 25.7.3 × 0.13 =
  26. 26.1.7 × 0.9 =
  27. 27.0.85 × 3.3 =
  28. 28.0.5 × 1.5 =
  29. 29.9.3 × 3.5 =
  30. 30.0.38 × 2.9 =
  31. 31.2.3 × 0.32 =
  32. 32.6.5 × 0.3 =
  33. 33.9.7 × 0.18 =
  34. 34.0.04 × 1.2 =
  35. 35.0.58 × 1.3 =
  36. 36.0.41 × 0.8 =
  37. 37.4.1 × 0.29 =
  38. 38.0.7 × 0.34 =
  39. 39.0.21 × 2.9 =
  40. 40.0.51 × 3.3 =

Answer key

  1. 0.81
  2. 0.072
  3. 0.38
  4. 1.344
  5. 25.08
  6. 0.171
  7. 0.552
  8. 1.296
  9. 0.156
  10. 0.544
  11. 1.225
  12. 2.15
  13. 0.783
  14. 0.462
  15. 9.36
  16. 1.029
  17. 2.619
  18. 0.279
  19. 1.105
  20. 0.306
  21. 2.015
  22. 2.36
  23. 16.77
  24. 1.537
  25. 0.949
  26. 1.53
  27. 2.805
  28. 0.75
  29. 32.55
  30. 1.102
  31. 0.736
  32. 1.95
  33. 1.746
  34. 0.048
  35. 0.754
  36. 0.328
  37. 1.189
  38. 0.238
  39. 0.609
  40. 1.683

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