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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 499 · 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. 1.0.16 × 2.3 =
  2. 2.0.61 × 3.6 =
  3. 3.6.5 × 0.7 =
  4. 4.0.04 × 0.6 =
  5. 5.0.66 × 1.1 =
  6. 6.0.38 × 3.5 =
  7. 7.6.8 × 0.2 =
  8. 8.0.7 × 1.1 =
  9. 9.1.1 × 1.6 =
  10. 10.2.5 × 0.06 =
  11. 11.8.6 × 3.7 =
  12. 12.8.8 × 0.09 =
  13. 13.7.3 × 0.21 =
  14. 14.8.6 × 0.36 =
  15. 15.9.5 × 3.3 =
  16. 16.0.48 × 0.6 =
  17. 17.2.7 × 0.17 =
  18. 18.4.5 × 0.03 =
  19. 19.0.51 × 2.5 =
  20. 20.0.75 × 3.7 =
  21. 21.3.8 × 2.1 =
  22. 22.2.3 × 1.3 =
  23. 23.0.34 × 0.6 =
  24. 24.3.5 × 1.5 =
  25. 25.0.94 × 2.1 =
  26. 26.9.3 × 0.13 =
  27. 27.0.3 × 0.32 =
  28. 28.7.2 × 2.7 =
  29. 29.0.31 × 0.2 =
  30. 30.0.37 × 2.7 =
  31. 31.3.6 × 2.7 =
  32. 32.0.82 × 2.7 =
  33. 33.0.59 × 2.2 =
  34. 34.1.5 × 1.4 =
  35. 35.2.5 × 3.1 =
  36. 36.0.81 × 1.1 =
  37. 37.5.2 × 0.09 =
  38. 38.9.9 × 3.3 =
  39. 39.1.4 × 2.6 =
  40. 40.9.1 × 0.02 =

Answer key

  1. 0.368
  2. 2.196
  3. 4.55
  4. 0.024
  5. 0.726
  6. 1.33
  7. 1.36
  8. 0.77
  9. 1.76
  10. 0.15
  11. 31.82
  12. 0.792
  13. 1.533
  14. 3.096
  15. 31.35
  16. 0.288
  17. 0.459
  18. 0.135
  19. 1.275
  20. 2.775
  21. 7.98
  22. 2.99
  23. 0.204
  24. 5.25
  25. 1.974
  26. 1.209
  27. 0.096
  28. 19.44
  29. 0.062
  30. 0.999
  31. 9.72
  32. 2.214
  33. 1.298
  34. 2.1
  35. 7.75
  36. 0.891
  37. 0.468
  38. 32.67
  39. 3.64
  40. 0.182

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