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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 833 · 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. 1.7.7 × 2.1 =
  2. 2.0.48 × 3.4 =
  3. 3.1.4 × 0.18 =
  4. 4.2.2 × 0.17 =
  5. 5.2.6 × 0.03 =
  6. 6.9.1 × 0.9 =
  7. 7.0.86 × 1.8 =
  8. 8.7.1 × 0.4 =
  9. 9.0.35 × 2.6 =
  10. 10.6.7 × 0.36 =
  11. 11.0.41 × 2.7 =
  12. 12.5.8 × 0.14 =
  13. 13.8.1 × 2.3 =
  14. 14.3.4 × 0.22 =
  15. 15.0.6 × 2.6 =
  16. 16.7.5 × 0.17 =
  17. 17.7.9 × 0.5 =
  18. 18.9.4 × 0.13 =
  19. 19.0.26 × 1.8 =
  20. 20.3.5 × 2.6 =
  21. 21.1.6 × 0.17 =
  22. 22.0.4 × 0.9 =
  23. 23.9.2 × 0.08 =
  24. 24.0.55 × 2.7 =
  25. 25.0.91 × 2.3 =
  26. 26.0.39 × 0.3 =
  27. 27.3.1 × 0.03 =
  28. 28.0.15 × 1.5 =
  29. 29.0.81 × 1.2 =
  30. 30.0.28 × 1.1 =
  31. 31.6.1 × 2.3 =
  32. 32.8.5 × 0.15 =
  33. 33.0.61 × 1.7 =
  34. 34.6.6 × 0.06 =
  35. 35.8.2 × 0.38 =
  36. 36.0.41 × 1.2 =
  37. 37.0.36 × 3.9 =
  38. 38.4.1 × 0.23 =
  39. 39.6.3 × 3.6 =
  40. 40.0.63 × 3.6 =

Answer key

  1. 16.17
  2. 1.632
  3. 0.252
  4. 0.374
  5. 0.078
  6. 8.19
  7. 1.548
  8. 2.84
  9. 0.91
  10. 2.412
  11. 1.107
  12. 0.812
  13. 18.63
  14. 0.748
  15. 1.56
  16. 1.275
  17. 3.95
  18. 1.222
  19. 0.468
  20. 9.1
  21. 0.272
  22. 0.36
  23. 0.736
  24. 1.485
  25. 2.093
  26. 0.117
  27. 0.093
  28. 0.225
  29. 0.972
  30. 0.308
  31. 14.03
  32. 1.275
  33. 1.037
  34. 0.396
  35. 3.116
  36. 0.492
  37. 1.404
  38. 0.943
  39. 22.68
  40. 2.268

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