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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 641 · 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. 1.6.8 × 2.6 =
  2. 2.0.59 × 2.6 =
  3. 3.2.5 × 3.4 =
  4. 4.0.08 × 1.1 =
  5. 5.0.19 × 1.1 =
  6. 6.6.2 × 0.3 =
  7. 7.1.7 × 0.36 =
  8. 8.0.76 × 0.7 =
  9. 9.0.26 × 0.4 =
  10. 10.6.1 × 0.39 =
  11. 11.0.3 × 0.6 =
  12. 12.0.25 × 1.6 =
  13. 13.1.4 × 3.5 =
  14. 14.0.98 × 3.1 =
  15. 15.3.6 × 1.1 =
  16. 16.9.4 × 2.4 =
  17. 17.8.6 × 0.14 =
  18. 18.0.06 × 3.1 =
  19. 19.6.1 × 0.7 =
  20. 20.0.41 × 1.3 =
  21. 21.0.4 × 0.21 =
  22. 22.2.1 × 1.7 =
  23. 23.0.93 × 1.1 =
  24. 24.0.89 × 0.5 =
  25. 25.9.8 × 0.09 =
  26. 26.0.63 × 0.4 =
  27. 27.0.25 × 0.8 =
  28. 28.0.68 × 0.7 =
  29. 29.7.4 × 0.03 =
  30. 30.3.7 × 0.3 =
  31. 31.0.08 × 1.9 =
  32. 32.7.2 × 3.9 =
  33. 33.0.3 × 1.8 =
  34. 34.1.6 × 0.34 =
  35. 35.0.97 × 0.5 =
  36. 36.4.2 × 0.24 =
  37. 37.0.41 × 2.7 =
  38. 38.5.1 × 0.8 =
  39. 39.0.86 × 3.7 =
  40. 40.0.2 × 1.1 =

Answer key

  1. 17.68
  2. 1.534
  3. 8.5
  4. 0.088
  5. 0.209
  6. 1.86
  7. 0.612
  8. 0.532
  9. 0.104
  10. 2.379
  11. 0.18
  12. 0.4
  13. 4.9
  14. 3.038
  15. 3.96
  16. 22.56
  17. 1.204
  18. 0.186
  19. 4.27
  20. 0.533
  21. 0.084
  22. 3.57
  23. 1.023
  24. 0.445
  25. 0.882
  26. 0.252
  27. 0.2
  28. 0.476
  29. 0.222
  30. 1.11
  31. 0.152
  32. 28.08
  33. 0.54
  34. 0.544
  35. 0.485
  36. 1.008
  37. 1.107
  38. 4.08
  39. 3.182
  40. 0.22

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