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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 26 · 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. 1.3.5 × 1.9 =
  2. 2.0.98 × 2.1 =
  3. 3.6.6 × 3.9 =
  4. 4.2.3 × 2.4 =
  5. 5.0.04 × 2.9 =
  6. 6.5.7 × 0.12 =
  7. 7.0.31 × 1.3 =
  8. 8.7.1 × 3.2 =
  9. 9.1.2 × 0.08 =
  10. 10.9.7 × 0.31 =
  11. 11.1.5 × 1.6 =
  12. 12.0.32 × 2.3 =
  13. 13.0.89 × 2.1 =
  14. 14.0.82 × 2.2 =
  15. 15.0.37 × 1.2 =
  16. 16.7.9 × 0.09 =
  17. 17.7.9 × 0.5 =
  18. 18.0.16 × 0.3 =
  19. 19.0.26 × 3.3 =
  20. 20.0.82 × 2.8 =
  21. 21.7.7 × 0.36 =
  22. 22.8.1 × 1.7 =
  23. 23.2.2 × 0.21 =
  24. 24.0.08 × 3.1 =
  25. 25.0.64 × 2.5 =
  26. 26.7.3 × 0.15 =
  27. 27.2.5 × 1.9 =
  28. 28.6.4 × 1.7 =
  29. 29.7.1 × 0.22 =
  30. 30.0.73 × 3.8 =
  31. 31.7.2 × 2.1 =
  32. 32.0.32 × 1.2 =
  33. 33.0.57 × 3.8 =
  34. 34.0.55 × 2.8 =
  35. 35.6.3 × 0.05 =
  36. 36.0.94 × 0.9 =
  37. 37.1.6 × 0.21 =
  38. 38.0.46 × 2.5 =
  39. 39.7.4 × 0.18 =
  40. 40.0.88 × 0.4 =

Answer key

  1. 6.65
  2. 2.058
  3. 25.74
  4. 5.52
  5. 0.116
  6. 0.684
  7. 0.403
  8. 22.72
  9. 0.096
  10. 3.007
  11. 2.4
  12. 0.736
  13. 1.869
  14. 1.804
  15. 0.444
  16. 0.711
  17. 3.95
  18. 0.048
  19. 0.858
  20. 2.296
  21. 2.772
  22. 13.77
  23. 0.462
  24. 0.248
  25. 1.6
  26. 1.095
  27. 4.75
  28. 10.88
  29. 1.562
  30. 2.774
  31. 15.12
  32. 0.384
  33. 2.166
  34. 1.54
  35. 0.315
  36. 0.846
  37. 0.336
  38. 1.15
  39. 1.332
  40. 0.352

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