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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 167 · 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. 1.1.9 × 1.7 =
  2. 2.8.1 × 1.8 =
  3. 3.0.45 × 1.8 =
  4. 4.2.7 × 3.5 =
  5. 5.0.82 × 0.2 =
  6. 6.7.9 × 0.36 =
  7. 7.3.7 × 0.06 =
  8. 8.2.5 × 0.6 =
  9. 9.0.6 × 0.05 =
  10. 10.9.4 × 0.32 =
  11. 11.8.7 × 0.34 =
  12. 12.0.94 × 3.9 =
  13. 13.0.88 × 2.8 =
  14. 14.0.99 × 0.4 =
  15. 15.6.5 × 0.2 =
  16. 16.7.2 × 3.6 =
  17. 17.8.3 × 0.14 =
  18. 18.7.5 × 0.18 =
  19. 19.0.28 × 3.7 =
  20. 20.7.8 × 0.7 =
  21. 21.7.7 × 2.6 =
  22. 22.6.1 × 3.3 =
  23. 23.0.51 × 0.2 =
  24. 24.1.1 × 0.25 =
  25. 25.4.7 × 0.12 =
  26. 26.2.3 × 0.07 =
  27. 27.6.8 × 3.1 =
  28. 28.7.8 × 0.15 =
  29. 29.6.7 × 0.14 =
  30. 30.8.1 × 0.12 =
  31. 31.9.7 × 0.4 =
  32. 32.2.2 × 1.6 =
  33. 33.4.3 × 1.9 =
  34. 34.0.05 × 3.1 =
  35. 35.0.9 × 0.5 =
  36. 36.0.62 × 1.7 =
  37. 37.0.15 × 0.2 =
  38. 38.0.61 × 3.1 =
  39. 39.0.07 × 1.8 =
  40. 40.7.4 × 2.8 =

Answer key

  1. 3.23
  2. 14.58
  3. 0.81
  4. 9.45
  5. 0.164
  6. 2.844
  7. 0.222
  8. 1.5
  9. 0.03
  10. 3.008
  11. 2.958
  12. 3.666
  13. 2.464
  14. 0.396
  15. 1.3
  16. 25.92
  17. 1.162
  18. 1.35
  19. 1.036
  20. 5.46
  21. 20.02
  22. 20.13
  23. 0.102
  24. 0.275
  25. 0.564
  26. 0.161
  27. 21.08
  28. 1.17
  29. 0.938
  30. 0.972
  31. 3.88
  32. 3.52
  33. 8.17
  34. 0.155
  35. 0.45
  36. 1.054
  37. 0.03
  38. 1.891
  39. 0.126
  40. 20.72

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