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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 14 · 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. 1.0.86 × 2.5 =
  2. 2.6.8 × 1.3 =
  3. 3.0.22 × 0.2 =
  4. 4.9.8 × 0.12 =
  5. 5.0.44 × 1.4 =
  6. 6.0.89 × 3.4 =
  7. 7.1.4 × 0.04 =
  8. 8.2.2 × 3.5 =
  9. 9.4.8 × 0.07 =
  10. 10.0.03 × 1.9 =
  11. 11.0.37 × 3.5 =
  12. 12.0.53 × 1.6 =
  13. 13.6.5 × 0.26 =
  14. 14.0.15 × 0.9 =
  15. 15.2.4 × 0.07 =
  16. 16.0.92 × 3.7 =
  17. 17.5.9 × 0.33 =
  18. 18.2.5 × 0.38 =
  19. 19.0.56 × 2.1 =
  20. 20.0.54 × 1.5 =
  21. 21.0.8 × 0.6 =
  22. 22.0.19 × 0.9 =
  23. 23.8.2 × 2.1 =
  24. 24.0.77 × 2.4 =
  25. 25.0.9 × 0.04 =
  26. 26.0.38 × 1.7 =
  27. 27.2.1 × 0.3 =
  28. 28.0.72 × 2.1 =
  29. 29.0.81 × 3.8 =
  30. 30.9.8 × 0.31 =
  31. 31.0.56 × 3.7 =
  32. 32.5.6 × 1.9 =
  33. 33.2.5 × 0.07 =
  34. 34.0.93 × 2.2 =
  35. 35.0.05 × 2.1 =
  36. 36.0.3 × 0.21 =
  37. 37.0.9 × 2.9 =
  38. 38.4.9 × 0.33 =
  39. 39.1.6 × 3.4 =
  40. 40.0.88 × 2.6 =

Answer key

  1. 2.15
  2. 8.84
  3. 0.044
  4. 1.176
  5. 0.616
  6. 3.026
  7. 0.056
  8. 7.7
  9. 0.336
  10. 0.057
  11. 1.295
  12. 0.848
  13. 1.69
  14. 0.135
  15. 0.168
  16. 3.404
  17. 1.947
  18. 0.95
  19. 1.176
  20. 0.81
  21. 0.48
  22. 0.171
  23. 17.22
  24. 1.848
  25. 0.036
  26. 0.646
  27. 0.63
  28. 1.512
  29. 3.078
  30. 3.038
  31. 2.072
  32. 10.64
  33. 0.175
  34. 2.046
  35. 0.105
  36. 0.063
  37. 2.61
  38. 1.617
  39. 5.44
  40. 2.288

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