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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 735 · 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. 1.2.5 × 3.1 =
  2. 2.1.6 × 0.4 =
  3. 3.3.7 × 1.2 =
  4. 4.7.1 × 0.7 =
  5. 5.9.3 × 2.6 =
  6. 6.1.8 × 0.31 =
  7. 7.4.5 × 0.31 =
  8. 8.0.25 × 3.5 =
  9. 9.0.12 × 2.6 =
  10. 10.6.2 × 0.15 =
  11. 11.0.07 × 0.8 =
  12. 12.0.63 × 1.6 =
  13. 13.1.9 × 3.5 =
  14. 14.4.5 × 0.39 =
  15. 15.0.72 × 1.7 =
  16. 16.1.7 × 0.16 =
  17. 17.0.69 × 3.5 =
  18. 18.0.43 × 3.6 =
  19. 19.7.4 × 0.15 =
  20. 20.0.5 × 0.31 =
  21. 21.1.8 × 0.03 =
  22. 22.0.21 × 0.4 =
  23. 23.4.2 × 3.8 =
  24. 24.8.5 × 1.3 =
  25. 25.4.1 × 2.7 =
  26. 26.0.93 × 1.2 =
  27. 27.6.5 × 3.8 =
  28. 28.0.07 × 1.3 =
  29. 29.6.4 × 0.22 =
  30. 30.3.5 × 0.18 =
  31. 31.0.67 × 2.3 =
  32. 32.0.3 × 0.3 =
  33. 33.0.54 × 3.4 =
  34. 34.9.1 × 1.1 =
  35. 35.5.8 × 0.6 =
  36. 36.2.8 × 1.4 =
  37. 37.0.88 × 3.3 =
  38. 38.0.81 × 0.4 =
  39. 39.0.69 × 3.4 =
  40. 40.7.7 × 0.31 =

Answer key

  1. 7.75
  2. 0.64
  3. 4.44
  4. 4.97
  5. 24.18
  6. 0.558
  7. 1.395
  8. 0.875
  9. 0.312
  10. 0.93
  11. 0.056
  12. 1.008
  13. 6.65
  14. 1.755
  15. 1.224
  16. 0.272
  17. 2.415
  18. 1.548
  19. 1.11
  20. 0.155
  21. 0.054
  22. 0.084
  23. 15.96
  24. 11.05
  25. 11.07
  26. 1.116
  27. 24.7
  28. 0.091
  29. 1.408
  30. 0.63
  31. 1.541
  32. 0.09
  33. 1.836
  34. 10.01
  35. 3.48
  36. 3.92
  37. 2.904
  38. 0.324
  39. 2.346
  40. 2.387

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