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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 226 · 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. 1.0.55 × 1.9 =
  2. 2.5.5 × 0.29 =
  3. 3.0.71 × 3.1 =
  4. 4.2.6 × 0.31 =
  5. 5.2.9 × 3.3 =
  6. 6.0.94 × 3.2 =
  7. 7.0.15 × 3.5 =
  8. 8.8.7 × 0.31 =
  9. 9.2.5 × 0.36 =
  10. 10.0.71 × 1.4 =
  11. 11.5.1 × 0.12 =
  12. 12.4.9 × 2.9 =
  13. 13.0.34 × 3.1 =
  14. 14.0.12 × 2.6 =
  15. 15.2.8 × 0.37 =
  16. 16.8.3 × 0.02 =
  17. 17.4.6 × 0.18 =
  18. 18.0.92 × 1.3 =
  19. 19.1.2 × 0.9 =
  20. 20.2.3 × 0.32 =
  21. 21.7.1 × 0.13 =
  22. 22.0.14 × 0.8 =
  23. 23.0.28 × 2.2 =
  24. 24.0.93 × 3.8 =
  25. 25.0.58 × 3.5 =
  26. 26.3.6 × 1.8 =
  27. 27.8.2 × 0.27 =
  28. 28.0.04 × 1.3 =
  29. 29.0.68 × 0.4 =
  30. 30.5.1 × 0.37 =
  31. 31.8.5 × 1.1 =
  32. 32.2.5 × 1.1 =
  33. 33.6.8 × 1.9 =
  34. 34.0.75 × 0.4 =
  35. 35.0.91 × 2.1 =
  36. 36.0.97 × 1.5 =
  37. 37.3.8 × 3.8 =
  38. 38.8.2 × 2.7 =
  39. 39.9.9 × 0.18 =
  40. 40.0.05 × 3.2 =

Answer key

  1. 1.045
  2. 1.595
  3. 2.201
  4. 0.806
  5. 9.57
  6. 3.008
  7. 0.525
  8. 2.697
  9. 0.9
  10. 0.994
  11. 0.612
  12. 14.21
  13. 1.054
  14. 0.312
  15. 1.036
  16. 0.166
  17. 0.828
  18. 1.196
  19. 1.08
  20. 0.736
  21. 0.923
  22. 0.112
  23. 0.616
  24. 3.534
  25. 2.03
  26. 6.48
  27. 2.214
  28. 0.052
  29. 0.272
  30. 1.887
  31. 9.35
  32. 2.75
  33. 12.92
  34. 0.3
  35. 1.911
  36. 1.455
  37. 14.44
  38. 22.14
  39. 1.782
  40. 0.16

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