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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 116 · 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 × 0.31 =
  2. 2.0.73 × 2.3 =
  3. 3.0.7 × 2.3 =
  4. 4.2.9 × 0.16 =
  5. 5.2.8 × 2.1 =
  6. 6.0.83 × 0.4 =
  7. 7.5.1 × 0.36 =
  8. 8.0.73 × 2.1 =
  9. 9.0.15 × 3.7 =
  10. 10.8.1 × 0.6 =
  11. 11.0.14 × 3.1 =
  12. 12.3.1 × 2.5 =
  13. 13.5.9 × 0.05 =
  14. 14.0.97 × 3.8 =
  15. 15.0.81 × 1.1 =
  16. 16.0.34 × 2.2 =
  17. 17.0.44 × 1.1 =
  18. 18.3.8 × 0.08 =
  19. 19.0.92 × 0.8 =
  20. 20.0.97 × 2.1 =
  21. 21.9.2 × 0.26 =
  22. 22.0.4 × 0.8 =
  23. 23.0.51 × 2.5 =
  24. 24.9.4 × 0.08 =
  25. 25.6.2 × 1.1 =
  26. 26.6.6 × 0.26 =
  27. 27.0.62 × 3.4 =
  28. 28.6.8 × 0.15 =
  29. 29.0.95 × 0.2 =
  30. 30.2.7 × 0.5 =
  31. 31.0.21 × 3.2 =
  32. 32.5.9 × 0.18 =
  33. 33.4.7 × 0.03 =
  34. 34.5.8 × 0.15 =
  35. 35.1.6 × 0.7 =
  36. 36.0.11 × 2.3 =
  37. 37.0.29 × 0.3 =
  38. 38.0.38 × 2.1 =
  39. 39.1.8 × 0.28 =
  40. 40.0.33 × 2.4 =

Answer key

  1. 2.201
  2. 1.679
  3. 1.61
  4. 0.464
  5. 5.88
  6. 0.332
  7. 1.836
  8. 1.533
  9. 0.555
  10. 4.86
  11. 0.434
  12. 7.75
  13. 0.295
  14. 3.686
  15. 0.891
  16. 0.748
  17. 0.484
  18. 0.304
  19. 0.736
  20. 2.037
  21. 2.392
  22. 0.32
  23. 1.275
  24. 0.752
  25. 6.82
  26. 1.716
  27. 2.108
  28. 1.02
  29. 0.19
  30. 1.35
  31. 0.672
  32. 1.062
  33. 0.141
  34. 0.87
  35. 1.12
  36. 0.253
  37. 0.087
  38. 0.798
  39. 0.504
  40. 0.792

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