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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 783 · 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. 1.4.5 × 0.16 =
  2. 2.0.42 × 1.1 =
  3. 3.8.4 × 0.25 =
  4. 4.3.9 × 0.31 =
  5. 5.7.9 × 0.31 =
  6. 6.0.47 × 2.8 =
  7. 7.0.8 × 3.1 =
  8. 8.6.1 × 0.11 =
  9. 9.8.1 × 2.4 =
  10. 10.9.7 × 0.39 =
  11. 11.0.09 × 2.3 =
  12. 12.0.51 × 2.7 =
  13. 13.8.7 × 0.31 =
  14. 14.4.3 × 0.24 =
  15. 15.0.35 × 3.8 =
  16. 16.0.71 × 2.6 =
  17. 17.0.59 × 1.7 =
  18. 18.0.5 × 1.1 =
  19. 19.6.2 × 3.3 =
  20. 20.0.5 × 3.8 =
  21. 21.0.5 × 0.2 =
  22. 22.0.4 × 0.27 =
  23. 23.7.6 × 0.05 =
  24. 24.1.8 × 3.2 =
  25. 25.8.9 × 0.08 =
  26. 26.0.06 × 1.5 =
  27. 27.9.3 × 0.27 =
  28. 28.6.3 × 1.6 =
  29. 29.0.55 × 2.1 =
  30. 30.9.2 × 0.21 =
  31. 31.8.1 × 0.37 =
  32. 32.0.56 × 1.8 =
  33. 33.0.68 × 2.3 =
  34. 34.0.02 × 0.5 =
  35. 35.0.73 × 2.7 =
  36. 36.1.1 × 0.8 =
  37. 37.0.54 × 1.2 =
  38. 38.8.2 × 0.25 =
  39. 39.7.3 × 0.38 =
  40. 40.2.8 × 2.3 =

Answer key

  1. 0.72
  2. 0.462
  3. 2.1
  4. 1.209
  5. 2.449
  6. 1.316
  7. 2.48
  8. 0.671
  9. 19.44
  10. 3.783
  11. 0.207
  12. 1.377
  13. 2.697
  14. 1.032
  15. 1.33
  16. 1.846
  17. 1.003
  18. 0.55
  19. 20.46
  20. 1.9
  21. 0.1
  22. 0.108
  23. 0.38
  24. 5.76
  25. 0.712
  26. 0.09
  27. 2.511
  28. 10.08
  29. 1.155
  30. 1.932
  31. 2.997
  32. 1.008
  33. 1.564
  34. 0.01
  35. 1.971
  36. 0.88
  37. 0.648
  38. 2.05
  39. 2.774
  40. 6.44

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