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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 918 · 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. 1.0.71 × 3.6 =
  2. 2.6.2 × 0.28 =
  3. 3.2.1 × 0.12 =
  4. 4.7.8 × 0.21 =
  5. 5.0.97 × 1.1 =
  6. 6.3.8 × 0.35 =
  7. 7.0.67 × 2.7 =
  8. 8.0.85 × 2.1 =
  9. 9.0.89 × 1.9 =
  10. 10.0.26 × 3.8 =
  11. 11.8.8 × 0.07 =
  12. 12.2.8 × 1.8 =
  13. 13.4.6 × 3.9 =
  14. 14.0.71 × 1.8 =
  15. 15.0.93 × 1.6 =
  16. 16.0.12 × 0.5 =
  17. 17.5.2 × 2.3 =
  18. 18.9.4 × 0.04 =
  19. 19.3.2 × 0.5 =
  20. 20.0.66 × 2.8 =
  21. 21.0.73 × 3.7 =
  22. 22.0.06 × 1.3 =
  23. 23.1.7 × 0.6 =
  24. 24.0.32 × 2.9 =
  25. 25.0.65 × 1.9 =
  26. 26.0.68 × 3.8 =
  27. 27.0.99 × 1.1 =
  28. 28.1.8 × 0.16 =
  29. 29.6.5 × 0.19 =
  30. 30.1.1 × 1.7 =
  31. 31.4.2 × 0.15 =
  32. 32.0.4 × 2.4 =
  33. 33.2.5 × 0.16 =
  34. 34.0.57 × 1.1 =
  35. 35.0.98 × 0.8 =
  36. 36.0.42 × 1.6 =
  37. 37.1.6 × 0.8 =
  38. 38.0.03 × 3.6 =
  39. 39.2.2 × 1.1 =
  40. 40.0.61 × 3.4 =

Answer key

  1. 2.556
  2. 1.736
  3. 0.252
  4. 1.638
  5. 1.067
  6. 1.33
  7. 1.809
  8. 1.785
  9. 1.691
  10. 0.988
  11. 0.616
  12. 5.04
  13. 17.94
  14. 1.278
  15. 1.488
  16. 0.06
  17. 11.96
  18. 0.376
  19. 1.6
  20. 1.848
  21. 2.701
  22. 0.078
  23. 1.02
  24. 0.928
  25. 1.235
  26. 2.584
  27. 1.089
  28. 0.288
  29. 1.235
  30. 1.87
  31. 0.63
  32. 0.96
  33. 0.4
  34. 0.627
  35. 0.784
  36. 0.672
  37. 1.28
  38. 0.108
  39. 2.42
  40. 2.074

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