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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 626 · 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. 1.0.51 × 1.5 =
  2. 2.4.6 × 0.05 =
  3. 3.1.1 × 0.06 =
  4. 4.0.3 × 0.11 =
  5. 5.0.21 × 0.2 =
  6. 6.0.22 × 2.7 =
  7. 7.0.14 × 3.6 =
  8. 8.0.04 × 3.1 =
  9. 9.0.22 × 3.5 =
  10. 10.1.3 × 0.36 =
  11. 11.6.2 × 0.26 =
  12. 12.5.1 × 0.02 =
  13. 13.0.8 × 0.2 =
  14. 14.3.1 × 0.05 =
  15. 15.0.76 × 0.6 =
  16. 16.0.69 × 0.9 =
  17. 17.7.1 × 2.4 =
  18. 18.5.6 × 0.34 =
  19. 19.7.4 × 0.07 =
  20. 20.7.1 × 2.1 =
  21. 21.9.7 × 1.7 =
  22. 22.2.7 × 0.19 =
  23. 23.0.79 × 2.5 =
  24. 24.0.55 × 0.8 =
  25. 25.5.4 × 0.12 =
  26. 26.6.4 × 0.9 =
  27. 27.0.12 × 1.1 =
  28. 28.0.89 × 0.7 =
  29. 29.8.1 × 0.22 =
  30. 30.0.18 × 1.3 =
  31. 31.0.04 × 0.4 =
  32. 32.0.31 × 3.9 =
  33. 33.7.9 × 3.2 =
  34. 34.0.15 × 0.5 =
  35. 35.3.8 × 0.13 =
  36. 36.0.59 × 0.4 =
  37. 37.4.4 × 3.1 =
  38. 38.0.93 × 2.1 =
  39. 39.4.7 × 0.3 =
  40. 40.3.9 × 0.31 =

Answer key

  1. 0.765
  2. 0.23
  3. 0.066
  4. 0.033
  5. 0.042
  6. 0.594
  7. 0.504
  8. 0.124
  9. 0.77
  10. 0.468
  11. 1.612
  12. 0.102
  13. 0.16
  14. 0.155
  15. 0.456
  16. 0.621
  17. 17.04
  18. 1.904
  19. 0.518
  20. 14.91
  21. 16.49
  22. 0.513
  23. 1.975
  24. 0.44
  25. 0.648
  26. 5.76
  27. 0.132
  28. 0.623
  29. 1.782
  30. 0.234
  31. 0.016
  32. 1.209
  33. 25.28
  34. 0.075
  35. 0.494
  36. 0.236
  37. 13.64
  38. 1.953
  39. 1.41
  40. 1.209

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