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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 65 · 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. 1.2.7 × 0.02 =
  2. 2.0.05 × 3.1 =
  3. 3.0.28 × 3.7 =
  4. 4.3.6 × 0.21 =
  5. 5.0.95 × 1.8 =
  6. 6.0.15 × 2.8 =
  7. 7.0.99 × 2.6 =
  8. 8.0.87 × 1.2 =
  9. 9.0.15 × 0.5 =
  10. 10.4.3 × 0.24 =
  11. 11.9.1 × 1.5 =
  12. 12.3.7 × 0.03 =
  13. 13.3.9 × 3.1 =
  14. 14.8.5 × 3.2 =
  15. 15.0.2 × 0.38 =
  16. 16.0.29 × 0.6 =
  17. 17.0.19 × 1.1 =
  18. 18.3.2 × 0.31 =
  19. 19.0.61 × 0.2 =
  20. 20.2.2 × 0.26 =
  21. 21.8.7 × 2.1 =
  22. 22.1.1 × 0.05 =
  23. 23.9.9 × 1.3 =
  24. 24.0.16 × 3.1 =
  25. 25.0.91 × 1.1 =
  26. 26.0.03 × 2.2 =
  27. 27.0.71 × 2.6 =
  28. 28.6.3 × 0.21 =
  29. 29.0.27 × 1.8 =
  30. 30.6.8 × 2.6 =
  31. 31.0.37 × 0.8 =
  32. 32.0.31 × 3.3 =
  33. 33.0.18 × 0.6 =
  34. 34.0.58 × 0.8 =
  35. 35.0.89 × 1.4 =
  36. 36.0.51 × 0.9 =
  37. 37.1.2 × 0.6 =
  38. 38.2.7 × 0.6 =
  39. 39.0.91 × 2.1 =
  40. 40.1.2 × 0.04 =

Answer key

  1. 0.054
  2. 0.155
  3. 1.036
  4. 0.756
  5. 1.71
  6. 0.42
  7. 2.574
  8. 1.044
  9. 0.075
  10. 1.032
  11. 13.65
  12. 0.111
  13. 12.09
  14. 27.2
  15. 0.076
  16. 0.174
  17. 0.209
  18. 0.992
  19. 0.122
  20. 0.572
  21. 18.27
  22. 0.055
  23. 12.87
  24. 0.496
  25. 1.001
  26. 0.066
  27. 1.846
  28. 1.323
  29. 0.486
  30. 17.68
  31. 0.296
  32. 1.023
  33. 0.108
  34. 0.464
  35. 1.246
  36. 0.459
  37. 0.72
  38. 1.62
  39. 1.911
  40. 0.048

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