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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 290 · 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. 1.5.1 × 1.9 =
  2. 2.0.18 × 2.1 =
  3. 3.4.6 × 1.9 =
  4. 4.1.5 × 2.4 =
  5. 5.5.2 × 2.6 =
  6. 6.0.88 × 0.5 =
  7. 7.7.8 × 0.9 =
  8. 8.0.31 × 3.1 =
  9. 9.0.13 × 3.6 =
  10. 10.1.4 × 1.1 =
  11. 11.4.9 × 0.14 =
  12. 12.1.1 × 2.9 =
  13. 13.4.1 × 0.22 =
  14. 14.0.5 × 3.1 =
  15. 15.0.81 × 3.5 =
  16. 16.0.35 × 1.4 =
  17. 17.7.7 × 3.3 =
  18. 18.0.31 × 0.6 =
  19. 19.3.1 × 0.27 =
  20. 20.0.31 × 1.2 =
  21. 21.0.03 × 1.7 =
  22. 22.0.54 × 1.5 =
  23. 23.1.1 × 0.02 =
  24. 24.0.67 × 0.4 =
  25. 25.8.7 × 1.3 =
  26. 26.0.91 × 1.8 =
  27. 27.1.3 × 0.19 =
  28. 28.0.72 × 0.9 =
  29. 29.3.7 × 2.5 =
  30. 30.0.72 × 1.5 =
  31. 31.0.14 × 3.7 =
  32. 32.0.03 × 2.3 =
  33. 33.0.67 × 3.1 =
  34. 34.5.8 × 0.3 =
  35. 35.0.24 × 0.4 =
  36. 36.1.8 × 3.9 =
  37. 37.3.5 × 0.11 =
  38. 38.0.57 × 3.5 =
  39. 39.6.4 × 0.02 =
  40. 40.0.99 × 0.5 =

Answer key

  1. 9.69
  2. 0.378
  3. 8.74
  4. 3.6
  5. 13.52
  6. 0.44
  7. 7.02
  8. 0.961
  9. 0.468
  10. 1.54
  11. 0.686
  12. 3.19
  13. 0.902
  14. 1.55
  15. 2.835
  16. 0.49
  17. 25.41
  18. 0.186
  19. 0.837
  20. 0.372
  21. 0.051
  22. 0.81
  23. 0.022
  24. 0.268
  25. 11.31
  26. 1.638
  27. 0.247
  28. 0.648
  29. 9.25
  30. 1.08
  31. 0.518
  32. 0.069
  33. 2.077
  34. 1.74
  35. 0.096
  36. 7.02
  37. 0.385
  38. 1.995
  39. 0.128
  40. 0.495

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