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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 504 · 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. 1.4.2 × 0.2 =
  2. 2.0.3 × 2.6 =
  3. 3.0.67 × 3.1 =
  4. 4.1.9 × 0.7 =
  5. 5.0.68 × 2.4 =
  6. 6.0.45 × 1.6 =
  7. 7.0.64 × 0.5 =
  8. 8.8.6 × 1.1 =
  9. 9.0.43 × 1.1 =
  10. 10.9.9 × 2.5 =
  11. 11.3.8 × 0.8 =
  12. 12.7.4 × 0.13 =
  13. 13.8.1 × 0.33 =
  14. 14.0.5 × 0.03 =
  15. 15.0.91 × 3.1 =
  16. 16.0.95 × 2.3 =
  17. 17.5.4 × 0.35 =
  18. 18.8.3 × 0.17 =
  19. 19.3.5 × 1.7 =
  20. 20.0.47 × 2.7 =
  21. 21.8.8 × 0.34 =
  22. 22.4.1 × 0.21 =
  23. 23.1.4 × 2.4 =
  24. 24.0.98 × 3.4 =
  25. 25.0.16 × 3.5 =
  26. 26.6.5 × 0.4 =
  27. 27.6.1 × 2.1 =
  28. 28.0.5 × 2.4 =
  29. 29.2.4 × 3.1 =
  30. 30.4.3 × 3.9 =
  31. 31.7.6 × 3.7 =
  32. 32.0.48 × 2.8 =
  33. 33.5.5 × 1.3 =
  34. 34.0.09 × 0.6 =
  35. 35.1.5 × 0.29 =
  36. 36.1.1 × 2.1 =
  37. 37.0.65 × 2.4 =
  38. 38.0.29 × 2.7 =
  39. 39.6.6 × 0.09 =
  40. 40.0.09 × 1.3 =

Answer key

  1. 0.84
  2. 0.78
  3. 2.077
  4. 1.33
  5. 1.632
  6. 0.72
  7. 0.32
  8. 9.46
  9. 0.473
  10. 24.75
  11. 3.04
  12. 0.962
  13. 2.673
  14. 0.015
  15. 2.821
  16. 2.185
  17. 1.89
  18. 1.411
  19. 5.95
  20. 1.269
  21. 2.992
  22. 0.861
  23. 3.36
  24. 3.332
  25. 0.56
  26. 2.6
  27. 12.81
  28. 1.2
  29. 7.44
  30. 16.77
  31. 28.12
  32. 1.344
  33. 7.15
  34. 0.054
  35. 0.435
  36. 2.31
  37. 1.56
  38. 0.783
  39. 0.594
  40. 0.117

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