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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 812 · 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. 1.0.16 × 1.2 =
  2. 2.8.3 × 3.9 =
  3. 3.0.6 × 2.5 =
  4. 4.0.41 × 1.4 =
  5. 5.1.8 × 3.1 =
  6. 6.0.68 × 0.2 =
  7. 7.7.1 × 0.28 =
  8. 8.0.3 × 1.7 =
  9. 9.0.39 × 2.1 =
  10. 10.6.8 × 0.21 =
  11. 11.0.91 × 0.2 =
  12. 12.1.6 × 3.1 =
  13. 13.0.21 × 1.3 =
  14. 14.2.3 × 0.27 =
  15. 15.8.7 × 0.3 =
  16. 16.0.27 × 0.9 =
  17. 17.5.9 × 0.08 =
  18. 18.0.39 × 0.3 =
  19. 19.7.1 × 2.9 =
  20. 20.0.85 × 3.7 =
  21. 21.2.8 × 0.4 =
  22. 22.0.51 × 0.9 =
  23. 23.1.5 × 3.1 =
  24. 24.0.66 × 1.1 =
  25. 25.9.3 × 1.5 =
  26. 26.2.5 × 0.05 =
  27. 27.0.56 × 3.9 =
  28. 28.9.8 × 0.06 =
  29. 29.0.29 × 1.8 =
  30. 30.0.05 × 2.2 =
  31. 31.2.2 × 3.4 =
  32. 32.0.24 × 3.1 =
  33. 33.1.1 × 1.4 =
  34. 34.0.02 × 3.3 =
  35. 35.8.7 × 0.32 =
  36. 36.0.89 × 2.8 =
  37. 37.0.73 × 2.9 =
  38. 38.8.5 × 0.39 =
  39. 39.0.4 × 1.2 =
  40. 40.5.1 × 0.17 =

Answer key

  1. 0.192
  2. 32.37
  3. 1.5
  4. 0.574
  5. 5.58
  6. 0.136
  7. 1.988
  8. 0.51
  9. 0.819
  10. 1.428
  11. 0.182
  12. 4.96
  13. 0.273
  14. 0.621
  15. 2.61
  16. 0.243
  17. 0.472
  18. 0.117
  19. 20.59
  20. 3.145
  21. 1.12
  22. 0.459
  23. 4.65
  24. 0.726
  25. 13.95
  26. 0.125
  27. 2.184
  28. 0.588
  29. 0.522
  30. 0.11
  31. 7.48
  32. 0.744
  33. 1.54
  34. 0.066
  35. 2.784
  36. 2.492
  37. 2.117
  38. 3.315
  39. 0.48
  40. 0.867

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