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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 217 · 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. 1.0.3 × 0.22 =
  2. 2.0.83 × 1.1 =
  3. 3.0.47 × 3.6 =
  4. 4.0.42 × 1.1 =
  5. 5.7.2 × 0.2 =
  6. 6.0.4 × 0.04 =
  7. 7.8.5 × 3.5 =
  8. 8.0.29 × 3.2 =
  9. 9.0.7 × 0.29 =
  10. 10.5.9 × 1.7 =
  11. 11.3.3 × 0.25 =
  12. 12.8.1 × 1.2 =
  13. 13.0.99 × 1.6 =
  14. 14.0.51 × 0.9 =
  15. 15.0.41 × 2.3 =
  16. 16.6.7 × 0.02 =
  17. 17.3.1 × 0.5 =
  18. 18.0.91 × 1.3 =
  19. 19.0.7 × 3.7 =
  20. 20.0.81 × 0.8 =
  21. 21.0.31 × 0.8 =
  22. 22.4.9 × 3.4 =
  23. 23.8.6 × 2.7 =
  24. 24.9.9 × 0.24 =
  25. 25.0.57 × 2.9 =
  26. 26.5.5 × 3.2 =
  27. 27.4.1 × 0.11 =
  28. 28.0.05 × 2.8 =
  29. 29.3.1 × 0.9 =
  30. 30.9.1 × 2.2 =
  31. 31.0.95 × 2.1 =
  32. 32.2.4 × 2.4 =
  33. 33.0.62 × 0.9 =
  34. 34.0.43 × 3.1 =
  35. 35.5.5 × 0.2 =
  36. 36.0.81 × 3.7 =
  37. 37.8.1 × 2.8 =
  38. 38.9.3 × 2.3 =
  39. 39.3.2 × 0.8 =
  40. 40.0.8 × 3.6 =

Answer key

  1. 0.066
  2. 0.913
  3. 1.692
  4. 0.462
  5. 1.44
  6. 0.016
  7. 29.75
  8. 0.928
  9. 0.203
  10. 10.03
  11. 0.825
  12. 9.72
  13. 1.584
  14. 0.459
  15. 0.943
  16. 0.134
  17. 1.55
  18. 1.183
  19. 2.59
  20. 0.648
  21. 0.248
  22. 16.66
  23. 23.22
  24. 2.376
  25. 1.653
  26. 17.6
  27. 0.451
  28. 0.14
  29. 2.79
  30. 20.02
  31. 1.995
  32. 5.76
  33. 0.558
  34. 1.333
  35. 1.1
  36. 2.997
  37. 22.68
  38. 21.39
  39. 2.56
  40. 2.88

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