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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 819 · 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. 1.0.29 × 3.6 =
  2. 2.0.45 × 0.4 =
  3. 3.2.7 × 0.2 =
  4. 4.4.8 × 2.7 =
  5. 5.9.7 × 0.6 =
  6. 6.0.51 × 3.3 =
  7. 7.9.6 × 0.2 =
  8. 8.7.7 × 0.5 =
  9. 9.4.2 × 1.5 =
  10. 10.0.92 × 1.2 =
  11. 11.0.31 × 1.1 =
  12. 12.0.11 × 1.1 =
  13. 13.0.16 × 1.2 =
  14. 14.0.8 × 2.4 =
  15. 15.6.6 × 3.2 =
  16. 16.0.38 × 2.7 =
  17. 17.0.97 × 3.3 =
  18. 18.1.5 × 0.35 =
  19. 19.0.79 × 1.2 =
  20. 20.3.8 × 0.9 =
  21. 21.2.4 × 0.06 =
  22. 22.0.42 × 1.3 =
  23. 23.3.7 × 0.14 =
  24. 24.1.3 × 1.4 =
  25. 25.9.9 × 1.7 =
  26. 26.0.27 × 0.2 =
  27. 27.0.21 × 2.4 =
  28. 28.0.8 × 0.29 =
  29. 29.0.21 × 1.1 =
  30. 30.0.13 × 1.4 =
  31. 31.8.3 × 0.29 =
  32. 32.9.6 × 1.7 =
  33. 33.0.84 × 0.9 =
  34. 34.0.47 × 1.4 =
  35. 35.3.1 × 0.9 =
  36. 36.0.51 × 1.1 =
  37. 37.2.8 × 0.02 =
  38. 38.0.62 × 1.3 =
  39. 39.0.81 × 3.2 =
  40. 40.5.7 × 1.8 =

Answer key

  1. 1.044
  2. 0.18
  3. 0.54
  4. 12.96
  5. 5.82
  6. 1.683
  7. 1.92
  8. 3.85
  9. 6.3
  10. 1.104
  11. 0.341
  12. 0.121
  13. 0.192
  14. 1.92
  15. 21.12
  16. 1.026
  17. 3.201
  18. 0.525
  19. 0.948
  20. 3.42
  21. 0.144
  22. 0.546
  23. 0.518
  24. 1.82
  25. 16.83
  26. 0.054
  27. 0.504
  28. 0.232
  29. 0.231
  30. 0.182
  31. 2.407
  32. 16.32
  33. 0.756
  34. 0.658
  35. 2.79
  36. 0.561
  37. 0.056
  38. 0.806
  39. 2.592
  40. 10.26

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