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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 151 · 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. 1.1.4 × 1.1 =
  2. 2.8.4 × 3.1 =
  3. 3.0.21 × 1.1 =
  4. 4.3.4 × 0.38 =
  5. 5.5.1 × 0.8 =
  6. 6.0.94 × 2.1 =
  7. 7.2.3 × 2.1 =
  8. 8.7.4 × 0.16 =
  9. 9.0.61 × 1.3 =
  10. 10.0.88 × 1.3 =
  11. 11.0.21 × 0.5 =
  12. 12.0.08 × 1.1 =
  13. 13.0.69 × 2.9 =
  14. 14.9.4 × 0.05 =
  15. 15.0.55 × 2.6 =
  16. 16.8.1 × 0.15 =
  17. 17.0.42 × 0.5 =
  18. 18.2.8 × 0.2 =
  19. 19.6.5 × 0.29 =
  20. 20.6.4 × 2.9 =
  21. 21.1.4 × 0.04 =
  22. 22.0.51 × 0.2 =
  23. 23.0.05 × 0.2 =
  24. 24.0.75 × 1.2 =
  25. 25.0.14 × 1.2 =
  26. 26.0.15 × 1.8 =
  27. 27.4.9 × 0.21 =
  28. 28.0.16 × 3.5 =
  29. 29.0.53 × 1.3 =
  30. 30.0.41 × 0.2 =
  31. 31.2.1 × 3.7 =
  32. 32.0.72 × 0.6 =
  33. 33.9.5 × 0.03 =
  34. 34.0.13 × 1.8 =
  35. 35.7.8 × 0.4 =
  36. 36.0.11 × 3.5 =
  37. 37.6.7 × 0.19 =
  38. 38.7.6 × 0.39 =
  39. 39.0.37 × 0.9 =
  40. 40.1.4 × 0.18 =

Answer key

  1. 1.54
  2. 26.04
  3. 0.231
  4. 1.292
  5. 4.08
  6. 1.974
  7. 4.83
  8. 1.184
  9. 0.793
  10. 1.144
  11. 0.105
  12. 0.088
  13. 2.001
  14. 0.47
  15. 1.43
  16. 1.215
  17. 0.21
  18. 0.56
  19. 1.885
  20. 18.56
  21. 0.056
  22. 0.102
  23. 0.01
  24. 0.9
  25. 0.168
  26. 0.27
  27. 1.029
  28. 0.56
  29. 0.689
  30. 0.082
  31. 7.77
  32. 0.432
  33. 0.285
  34. 0.234
  35. 3.12
  36. 0.385
  37. 1.273
  38. 2.964
  39. 0.333
  40. 0.252

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