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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 814 · 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. 1.1.9 × 0.24 =
  2. 2.1.1 × 2.5 =
  3. 3.4.3 × 1.7 =
  4. 4.0.06 × 2.1 =
  5. 5.9.3 × 3.1 =
  6. 6.0.36 × 0.2 =
  7. 7.0.94 × 3.3 =
  8. 8.8.1 × 1.1 =
  9. 9.0.96 × 3.9 =
  10. 10.4.2 × 3.1 =
  11. 11.0.95 × 0.6 =
  12. 12.0.29 × 3.4 =
  13. 13.0.44 × 2.7 =
  14. 14.0.18 × 1.1 =
  15. 15.0.19 × 3.4 =
  16. 16.8.6 × 0.03 =
  17. 17.0.54 × 2.8 =
  18. 18.0.51 × 1.5 =
  19. 19.0.11 × 3.4 =
  20. 20.0.35 × 2.7 =
  21. 21.2.3 × 0.16 =
  22. 22.0.31 × 1.4 =
  23. 23.7.5 × 3.2 =
  24. 24.2.2 × 2.3 =
  25. 25.6.4 × 1.5 =
  26. 26.4.9 × 3.7 =
  27. 27.8.9 × 0.16 =
  28. 28.1.4 × 0.4 =
  29. 29.8.4 × 3.3 =
  30. 30.0.9 × 1.6 =
  31. 31.0.5 × 2.4 =
  32. 32.0.2 × 2.8 =
  33. 33.0.5 × 0.11 =
  34. 34.0.3 × 0.3 =
  35. 35.0.28 × 3.1 =
  36. 36.0.15 × 3.9 =
  37. 37.9.8 × 0.07 =
  38. 38.7.9 × 0.7 =
  39. 39.9.8 × 0.11 =
  40. 40.0.48 × 2.3 =

Answer key

  1. 0.456
  2. 2.75
  3. 7.31
  4. 0.126
  5. 28.83
  6. 0.072
  7. 3.102
  8. 8.91
  9. 3.744
  10. 13.02
  11. 0.57
  12. 0.986
  13. 1.188
  14. 0.198
  15. 0.646
  16. 0.258
  17. 1.512
  18. 0.765
  19. 0.374
  20. 0.945
  21. 0.368
  22. 0.434
  23. 24
  24. 5.06
  25. 9.6
  26. 18.13
  27. 1.424
  28. 0.56
  29. 27.72
  30. 1.44
  31. 1.2
  32. 0.56
  33. 0.055
  34. 0.09
  35. 0.868
  36. 0.585
  37. 0.686
  38. 5.53
  39. 1.078
  40. 1.104

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