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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 992 · 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. 1.0.22 × 1.3 =
  2. 2.0.9 × 3.3 =
  3. 3.0.91 × 1.2 =
  4. 4.0.99 × 1.3 =
  5. 5.6.9 × 0.25 =
  6. 6.0.27 × 1.5 =
  7. 7.0.84 × 2.7 =
  8. 8.0.96 × 2.1 =
  9. 9.9.8 × 0.07 =
  10. 10.3.6 × 1.1 =
  11. 11.4.5 × 1.1 =
  12. 12.0.11 × 1.1 =
  13. 13.4.8 × 0.13 =
  14. 14.0.17 × 0.8 =
  15. 15.9.3 × 0.13 =
  16. 16.2.6 × 3.8 =
  17. 17.1.1 × 0.31 =
  18. 18.1.9 × 0.11 =
  19. 19.0.58 × 3.4 =
  20. 20.0.27 × 0.6 =
  21. 21.0.63 × 1.5 =
  22. 22.0.79 × 0.8 =
  23. 23.3.7 × 0.03 =
  24. 24.0.78 × 2.1 =
  25. 25.7.9 × 0.12 =
  26. 26.0.82 × 0.4 =
  27. 27.9.5 × 3.6 =
  28. 28.5.2 × 0.8 =
  29. 29.6.4 × 0.31 =
  30. 30.0.15 × 1.2 =
  31. 31.4.2 × 0.26 =
  32. 32.0.86 × 2.9 =
  33. 33.3.4 × 2.1 =
  34. 34.6.6 × 0.36 =
  35. 35.1.1 × 0.06 =
  36. 36.0.95 × 3.5 =
  37. 37.2.2 × 2.8 =
  38. 38.0.33 × 3.8 =
  39. 39.8.1 × 3.5 =
  40. 40.0.77 × 0.2 =

Answer key

  1. 0.286
  2. 2.97
  3. 1.092
  4. 1.287
  5. 1.725
  6. 0.405
  7. 2.268
  8. 2.016
  9. 0.686
  10. 3.96
  11. 4.95
  12. 0.121
  13. 0.624
  14. 0.136
  15. 1.209
  16. 9.88
  17. 0.341
  18. 0.209
  19. 1.972
  20. 0.162
  21. 0.945
  22. 0.632
  23. 0.111
  24. 1.638
  25. 0.948
  26. 0.328
  27. 34.2
  28. 4.16
  29. 1.984
  30. 0.18
  31. 1.092
  32. 2.494
  33. 7.14
  34. 2.376
  35. 0.066
  36. 3.325
  37. 6.16
  38. 1.254
  39. 28.35
  40. 0.154

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