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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 343 · 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. 1.8.6 × 1.3 =
  2. 2.0.95 × 1.1 =
  3. 3.0.3 × 3.7 =
  4. 4.0.64 × 3.1 =
  5. 5.0.35 × 0.3 =
  6. 6.0.31 × 0.3 =
  7. 7.9.6 × 0.21 =
  8. 8.0.91 × 1.5 =
  9. 9.2.3 × 0.31 =
  10. 10.3.9 × 1.5 =
  11. 11.0.82 × 3.6 =
  12. 12.1.8 × 0.6 =
  13. 13.2.9 × 2.1 =
  14. 14.0.31 × 3.6 =
  15. 15.3.1 × 3.6 =
  16. 16.6.6 × 0.22 =
  17. 17.0.56 × 1.7 =
  18. 18.0.07 × 0.8 =
  19. 19.9.7 × 1.9 =
  20. 20.0.35 × 0.2 =
  21. 21.0.25 × 3.2 =
  22. 22.2.1 × 1.5 =
  23. 23.0.61 × 3.3 =
  24. 24.0.21 × 2.1 =
  25. 25.0.17 × 0.9 =
  26. 26.0.28 × 3.1 =
  27. 27.0.21 × 0.2 =
  28. 28.0.04 × 2.6 =
  29. 29.0.62 × 3.8 =
  30. 30.0.18 × 2.8 =
  31. 31.5.7 × 3.4 =
  32. 32.0.99 × 3.1 =
  33. 33.0.76 × 1.7 =
  34. 34.6.1 × 0.19 =
  35. 35.0.71 × 1.6 =
  36. 36.0.31 × 2.1 =
  37. 37.3.5 × 2.7 =
  38. 38.7.2 × 0.08 =
  39. 39.0.3 × 0.23 =
  40. 40.0.42 × 2.7 =

Answer key

  1. 11.18
  2. 1.045
  3. 1.11
  4. 1.984
  5. 0.105
  6. 0.093
  7. 2.016
  8. 1.365
  9. 0.713
  10. 5.85
  11. 2.952
  12. 1.08
  13. 6.09
  14. 1.116
  15. 11.16
  16. 1.452
  17. 0.952
  18. 0.056
  19. 18.43
  20. 0.07
  21. 0.8
  22. 3.15
  23. 2.013
  24. 0.441
  25. 0.153
  26. 0.868
  27. 0.042
  28. 0.104
  29. 2.356
  30. 0.504
  31. 19.38
  32. 3.069
  33. 1.292
  34. 1.159
  35. 1.136
  36. 0.651
  37. 9.45
  38. 0.576
  39. 0.069
  40. 1.134

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