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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 479 · 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. 1.0.94 × 3.7 =
  2. 2.0.39 × 0.5 =
  3. 3.0.37 × 0.9 =
  4. 4.0.28 × 2.8 =
  5. 5.8.1 × 0.37 =
  6. 6.0.77 × 1.1 =
  7. 7.4.6 × 1.9 =
  8. 8.0.78 × 0.2 =
  9. 9.0.29 × 3.1 =
  10. 10.0.67 × 2.7 =
  11. 11.5.2 × 0.29 =
  12. 12.0.34 × 3.1 =
  13. 13.2.9 × 0.26 =
  14. 14.2.8 × 0.31 =
  15. 15.0.5 × 3.3 =
  16. 16.0.19 × 2.6 =
  17. 17.0.3 × 0.06 =
  18. 18.6.1 × 0.4 =
  19. 19.0.05 × 3.5 =
  20. 20.0.61 × 1.3 =
  21. 21.0.06 × 1.2 =
  22. 22.4.1 × 0.23 =
  23. 23.3.5 × 0.35 =
  24. 24.0.24 × 3.9 =
  25. 25.8.2 × 3.1 =
  26. 26.6.6 × 2.7 =
  27. 27.9.5 × 1.3 =
  28. 28.0.34 × 2.9 =
  29. 29.0.55 × 2.2 =
  30. 30.0.16 × 3.5 =
  31. 31.0.11 × 1.9 =
  32. 32.0.62 × 2.6 =
  33. 33.0.11 × 1.1 =
  34. 34.8.5 × 2.8 =
  35. 35.0.75 × 1.3 =
  36. 36.0.78 × 0.5 =
  37. 37.3.4 × 1.7 =
  38. 38.3.4 × 2.6 =
  39. 39.7.4 × 0.33 =
  40. 40.1.1 × 1.4 =

Answer key

  1. 3.478
  2. 0.195
  3. 0.333
  4. 0.784
  5. 2.997
  6. 0.847
  7. 8.74
  8. 0.156
  9. 0.899
  10. 1.809
  11. 1.508
  12. 1.054
  13. 0.754
  14. 0.868
  15. 1.65
  16. 0.494
  17. 0.018
  18. 2.44
  19. 0.175
  20. 0.793
  21. 0.072
  22. 0.943
  23. 1.225
  24. 0.936
  25. 25.42
  26. 17.82
  27. 12.35
  28. 0.986
  29. 1.21
  30. 0.56
  31. 0.209
  32. 1.612
  33. 0.121
  34. 23.8
  35. 0.975
  36. 0.39
  37. 5.78
  38. 8.84
  39. 2.442
  40. 1.54

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