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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 704 · 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. 1.0.4 × 0.22 =
  2. 2.3.3 × 0.34 =
  3. 3.0.47 × 3.7 =
  4. 4.9.6 × 3.9 =
  5. 5.0.4 × 0.28 =
  6. 6.0.94 × 2.3 =
  7. 7.5.1 × 0.15 =
  8. 8.0.59 × 1.9 =
  9. 9.0.74 × 0.4 =
  10. 10.6.3 × 3.8 =
  11. 11.5.1 × 0.5 =
  12. 12.0.35 × 2.5 =
  13. 13.0.63 × 0.2 =
  14. 14.9.7 × 0.17 =
  15. 15.5.7 × 0.5 =
  16. 16.2.3 × 2.1 =
  17. 17.0.31 × 2.5 =
  18. 18.0.64 × 0.2 =
  19. 19.7.5 × 0.18 =
  20. 20.0.02 × 1.8 =
  21. 21.0.41 × 1.1 =
  22. 22.3.1 × 3.9 =
  23. 23.3.3 × 3.9 =
  24. 24.6.1 × 0.21 =
  25. 25.0.23 × 3.2 =
  26. 26.0.07 × 2.1 =
  27. 27.0.32 × 2.5 =
  28. 28.3.8 × 0.22 =
  29. 29.0.2 × 2.9 =
  30. 30.0.35 × 3.1 =
  31. 31.0.82 × 3.3 =
  32. 32.0.92 × 3.2 =
  33. 33.6.4 × 0.9 =
  34. 34.0.56 × 0.4 =
  35. 35.0.62 × 2.8 =
  36. 36.9.2 × 2.4 =
  37. 37.8.1 × 1.7 =
  38. 38.0.24 × 1.4 =
  39. 39.0.59 × 1.2 =
  40. 40.0.68 × 2.9 =

Answer key

  1. 0.088
  2. 1.122
  3. 1.739
  4. 37.44
  5. 0.112
  6. 2.162
  7. 0.765
  8. 1.121
  9. 0.296
  10. 23.94
  11. 2.55
  12. 0.875
  13. 0.126
  14. 1.649
  15. 2.85
  16. 4.83
  17. 0.775
  18. 0.128
  19. 1.35
  20. 0.036
  21. 0.451
  22. 12.09
  23. 12.87
  24. 1.281
  25. 0.736
  26. 0.147
  27. 0.8
  28. 0.836
  29. 0.58
  30. 1.085
  31. 2.706
  32. 2.944
  33. 5.76
  34. 0.224
  35. 1.736
  36. 22.08
  37. 13.77
  38. 0.336
  39. 0.708
  40. 1.972

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