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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 751 · 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. 1.0.53 × 2.6 =
  2. 2.7.3 × 0.23 =
  3. 3.4.1 × 0.28 =
  4. 4.9.2 × 3.5 =
  5. 5.0.7 × 0.07 =
  6. 6.0.47 × 2.6 =
  7. 7.0.39 × 0.7 =
  8. 8.0.19 × 2.1 =
  9. 9.0.76 × 2.1 =
  10. 10.8.1 × 1.1 =
  11. 11.0.95 × 1.9 =
  12. 12.0.4 × 2.7 =
  13. 13.0.38 × 2.7 =
  14. 14.7.6 × 0.34 =
  15. 15.7.9 × 1.1 =
  16. 16.0.8 × 0.2 =
  17. 17.3.5 × 0.02 =
  18. 18.0.51 × 3.6 =
  19. 19.0.4 × 0.9 =
  20. 20.9.4 × 1.4 =
  21. 21.3.3 × 1.8 =
  22. 22.3.7 × 0.08 =
  23. 23.1.6 × 0.03 =
  24. 24.7.1 × 2.3 =
  25. 25.5.4 × 3.5 =
  26. 26.6.9 × 1.1 =
  27. 27.9.6 × 0.2 =
  28. 28.0.99 × 3.4 =
  29. 29.0.13 × 0.6 =
  30. 30.9.7 × 0.19 =
  31. 31.0.56 × 0.4 =
  32. 32.0.3 × 0.31 =
  33. 33.2.1 × 0.22 =
  34. 34.0.67 × 3.1 =
  35. 35.0.7 × 0.11 =
  36. 36.8.8 × 0.15 =
  37. 37.0.79 × 1.6 =
  38. 38.0.51 × 3.5 =
  39. 39.0.77 × 2.6 =
  40. 40.0.91 × 2.8 =

Answer key

  1. 1.378
  2. 1.679
  3. 1.148
  4. 32.2
  5. 0.049
  6. 1.222
  7. 0.273
  8. 0.399
  9. 1.596
  10. 8.91
  11. 1.805
  12. 1.08
  13. 1.026
  14. 2.584
  15. 8.69
  16. 0.16
  17. 0.07
  18. 1.836
  19. 0.36
  20. 13.16
  21. 5.94
  22. 0.296
  23. 0.048
  24. 16.33
  25. 18.9
  26. 7.59
  27. 1.92
  28. 3.366
  29. 0.078
  30. 1.843
  31. 0.224
  32. 0.093
  33. 0.462
  34. 2.077
  35. 0.077
  36. 1.32
  37. 1.264
  38. 1.785
  39. 2.002
  40. 2.548

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