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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 537 · 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 × 0.7 =
  2. 2.0.8 × 0.19 =
  3. 3.0.45 × 0.9 =
  4. 4.0.51 × 0.8 =
  5. 5.4.8 × 1.5 =
  6. 6.7.8 × 0.25 =
  7. 7.3.3 × 2.7 =
  8. 8.1.1 × 0.6 =
  9. 9.0.54 × 1.4 =
  10. 10.7.9 × 2.8 =
  11. 11.8.8 × 0.37 =
  12. 12.0.23 × 3.5 =
  13. 13.0.09 × 0.9 =
  14. 14.6.1 × 2.1 =
  15. 15.4.6 × 3.3 =
  16. 16.7.1 × 0.02 =
  17. 17.2.7 × 0.11 =
  18. 18.0.41 × 0.3 =
  19. 19.0.54 × 0.4 =
  20. 20.1.2 × 0.04 =
  21. 21.2.4 × 0.24 =
  22. 22.1.6 × 0.18 =
  23. 23.4.9 × 0.14 =
  24. 24.1.1 × 0.25 =
  25. 25.0.86 × 2.1 =
  26. 26.3.7 × 0.7 =
  27. 27.3.9 × 2.6 =
  28. 28.2.9 × 0.17 =
  29. 29.8.5 × 2.2 =
  30. 30.5.1 × 1.5 =
  31. 31.0.12 × 0.4 =
  32. 32.0.17 × 3.2 =
  33. 33.0.08 × 1.7 =
  34. 34.0.59 × 3.3 =
  35. 35.0.68 × 3.8 =
  36. 36.4.6 × 0.21 =
  37. 37.0.71 × 0.8 =
  38. 38.0.35 × 3.3 =
  39. 39.0.07 × 3.8 =
  40. 40.9.3 × 3.9 =

Answer key

  1. 0.154
  2. 0.152
  3. 0.405
  4. 0.408
  5. 7.2
  6. 1.95
  7. 8.91
  8. 0.66
  9. 0.756
  10. 22.12
  11. 3.256
  12. 0.805
  13. 0.081
  14. 12.81
  15. 15.18
  16. 0.142
  17. 0.297
  18. 0.123
  19. 0.216
  20. 0.048
  21. 0.576
  22. 0.288
  23. 0.686
  24. 0.275
  25. 1.806
  26. 2.59
  27. 10.14
  28. 0.493
  29. 18.7
  30. 7.65
  31. 0.048
  32. 0.544
  33. 0.136
  34. 1.947
  35. 2.584
  36. 0.966
  37. 0.568
  38. 1.155
  39. 0.266
  40. 36.27

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