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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 253 · 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. 1.3.1 × 1.1 =
  2. 2.0.78 × 2.1 =
  3. 3.0.63 × 2.1 =
  4. 4.8.8 × 0.11 =
  5. 5.0.83 × 0.9 =
  6. 6.2.7 × 0.23 =
  7. 7.0.81 × 2.2 =
  8. 8.0.37 × 1.8 =
  9. 9.9.1 × 3.1 =
  10. 10.0.68 × 1.7 =
  11. 11.4.2 × 1.5 =
  12. 12.7.9 × 0.23 =
  13. 13.1.3 × 0.19 =
  14. 14.0.23 × 0.7 =
  15. 15.0.81 × 1.1 =
  16. 16.0.58 × 0.4 =
  17. 17.0.05 × 0.9 =
  18. 18.0.73 × 2.1 =
  19. 19.2.4 × 0.39 =
  20. 20.0.7 × 0.21 =
  21. 21.6.2 × 0.24 =
  22. 22.5.1 × 0.13 =
  23. 23.7.4 × 2.2 =
  24. 24.5.1 × 2.8 =
  25. 25.6.5 × 2.7 =
  26. 26.0.16 × 1.6 =
  27. 27.0.31 × 1.1 =
  28. 28.1.2 × 0.33 =
  29. 29.0.84 × 3.7 =
  30. 30.0.34 × 0.4 =
  31. 31.0.53 × 3.2 =
  32. 32.7.1 × 0.8 =
  33. 33.7.2 × 0.02 =
  34. 34.1.3 × 2.7 =
  35. 35.3.5 × 0.2 =
  36. 36.0.5 × 2.1 =
  37. 37.0.86 × 0.3 =
  38. 38.3.9 × 0.9 =
  39. 39.0.3 × 1.9 =
  40. 40.7.1 × 0.21 =

Answer key

  1. 3.41
  2. 1.638
  3. 1.323
  4. 0.968
  5. 0.747
  6. 0.621
  7. 1.782
  8. 0.666
  9. 28.21
  10. 1.156
  11. 6.3
  12. 1.817
  13. 0.247
  14. 0.161
  15. 0.891
  16. 0.232
  17. 0.045
  18. 1.533
  19. 0.936
  20. 0.147
  21. 1.488
  22. 0.663
  23. 16.28
  24. 14.28
  25. 17.55
  26. 0.256
  27. 0.341
  28. 0.396
  29. 3.108
  30. 0.136
  31. 1.696
  32. 5.68
  33. 0.144
  34. 3.51
  35. 0.7
  36. 1.05
  37. 0.258
  38. 3.51
  39. 0.57
  40. 1.491

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