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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 759 · 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. 1.7.1 × 3.7 =
  2. 2.0.86 × 1.2 =
  3. 3.0.38 × 2.6 =
  4. 4.1.4 × 0.4 =
  5. 5.0.37 × 1.3 =
  6. 6.0.07 × 2.7 =
  7. 7.5.9 × 2.6 =
  8. 8.0.22 × 0.2 =
  9. 9.6.9 × 3.4 =
  10. 10.5.3 × 0.04 =
  11. 11.0.29 × 1.1 =
  12. 12.0.04 × 0.5 =
  13. 13.0.78 × 1.4 =
  14. 14.3.1 × 0.34 =
  15. 15.0.09 × 0.5 =
  16. 16.5.2 × 2.9 =
  17. 17.9.1 × 2.9 =
  18. 18.1.1 × 0.3 =
  19. 19.0.26 × 2.4 =
  20. 20.1.1 × 0.16 =
  21. 21.0.48 × 1.4 =
  22. 22.6.5 × 3.1 =
  23. 23.2.8 × 1.6 =
  24. 24.3.5 × 1.1 =
  25. 25.0.46 × 3.6 =
  26. 26.0.61 × 3.9 =
  27. 27.2.2 × 0.4 =
  28. 28.0.21 × 0.6 =
  29. 29.7.9 × 0.11 =
  30. 30.0.37 × 3.1 =
  31. 31.0.61 × 3.3 =
  32. 32.2.3 × 0.39 =
  33. 33.0.51 × 3.5 =
  34. 34.1.1 × 0.16 =
  35. 35.0.43 × 0.2 =
  36. 36.2.1 × 1.8 =
  37. 37.0.84 × 1.3 =
  38. 38.1.7 × 0.24 =
  39. 39.0.58 × 3.1 =
  40. 40.0.76 × 0.4 =

Answer key

  1. 26.27
  2. 1.032
  3. 0.988
  4. 0.56
  5. 0.481
  6. 0.189
  7. 15.34
  8. 0.044
  9. 23.46
  10. 0.212
  11. 0.319
  12. 0.02
  13. 1.092
  14. 1.054
  15. 0.045
  16. 15.08
  17. 26.39
  18. 0.33
  19. 0.624
  20. 0.176
  21. 0.672
  22. 20.15
  23. 4.48
  24. 3.85
  25. 1.656
  26. 2.379
  27. 0.88
  28. 0.126
  29. 0.869
  30. 1.147
  31. 2.013
  32. 0.897
  33. 1.785
  34. 0.176
  35. 0.086
  36. 3.78
  37. 1.092
  38. 0.408
  39. 1.798
  40. 0.304

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