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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 436 · 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. 1.4.4 × 0.28 =
  2. 2.1.5 × 3.3 =
  3. 3.7.3 × 2.4 =
  4. 4.1.8 × 3.7 =
  5. 5.0.33 × 1.1 =
  6. 6.0.17 × 2.6 =
  7. 7.0.27 × 1.4 =
  8. 8.8.5 × 3.6 =
  9. 9.6.2 × 0.32 =
  10. 10.0.3 × 0.36 =
  11. 11.1.7 × 3.6 =
  12. 12.0.72 × 1.2 =
  13. 13.8.5 × 0.2 =
  14. 14.6.1 × 0.29 =
  15. 15.3.4 × 0.3 =
  16. 16.2.4 × 0.18 =
  17. 17.0.37 × 3.4 =
  18. 18.8.8 × 1.1 =
  19. 19.0.9 × 1.4 =
  20. 20.0.21 × 3.3 =
  21. 21.7.7 × 3.2 =
  22. 22.0.52 × 1.7 =
  23. 23.3.5 × 0.38 =
  24. 24.8.9 × 2.6 =
  25. 25.9.7 × 0.11 =
  26. 26.7.3 × 1.2 =
  27. 27.0.54 × 0.2 =
  28. 28.0.03 × 1.9 =
  29. 29.0.02 × 3.1 =
  30. 30.0.38 × 3.1 =
  31. 31.0.12 × 3.3 =
  32. 32.3.9 × 0.4 =
  33. 33.1.7 × 2.5 =
  34. 34.0.17 × 1.1 =
  35. 35.0.83 × 3.5 =
  36. 36.0.32 × 0.9 =
  37. 37.0.41 × 0.3 =
  38. 38.0.29 × 3.4 =
  39. 39.0.78 × 3.2 =
  40. 40.7.4 × 0.38 =

Answer key

  1. 1.232
  2. 4.95
  3. 17.52
  4. 6.66
  5. 0.363
  6. 0.442
  7. 0.378
  8. 30.6
  9. 1.984
  10. 0.108
  11. 6.12
  12. 0.864
  13. 1.7
  14. 1.769
  15. 1.02
  16. 0.432
  17. 1.258
  18. 9.68
  19. 1.26
  20. 0.693
  21. 24.64
  22. 0.884
  23. 1.33
  24. 23.14
  25. 1.067
  26. 8.76
  27. 0.108
  28. 0.057
  29. 0.062
  30. 1.178
  31. 0.396
  32. 1.56
  33. 4.25
  34. 0.187
  35. 2.905
  36. 0.288
  37. 0.123
  38. 0.986
  39. 2.496
  40. 2.812

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