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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 380 · 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 × 1.2 =
  2. 2.0.97 × 1.1 =
  3. 3.2.1 × 0.11 =
  4. 4.4.2 × 0.4 =
  5. 5.5.8 × 3.1 =
  6. 6.0.16 × 2.9 =
  7. 7.0.47 × 1.9 =
  8. 8.0.17 × 1.5 =
  9. 9.0.69 × 0.6 =
  10. 10.9.2 × 2.9 =
  11. 11.2.5 × 0.24 =
  12. 12.0.47 × 3.9 =
  13. 13.0.63 × 3.2 =
  14. 14.1.1 × 0.04 =
  15. 15.0.92 × 2.7 =
  16. 16.0.95 × 3.2 =
  17. 17.0.51 × 3.4 =
  18. 18.0.67 × 1.5 =
  19. 19.2.5 × 0.16 =
  20. 20.0.38 × 3.2 =
  21. 21.0.82 × 3.1 =
  22. 22.6.6 × 0.16 =
  23. 23.8.1 × 0.12 =
  24. 24.0.8 × 0.15 =
  25. 25.0.19 × 0.5 =
  26. 26.0.91 × 1.9 =
  27. 27.5.4 × 3.7 =
  28. 28.0.2 × 0.23 =
  29. 29.0.81 × 3.7 =
  30. 30.7.9 × 0.23 =
  31. 31.3.4 × 0.24 =
  32. 32.2.2 × 2.9 =
  33. 33.0.03 × 1.7 =
  34. 34.0.86 × 1.2 =
  35. 35.0.32 × 1.6 =
  36. 36.8.3 × 0.34 =
  37. 37.7.7 × 2.2 =
  38. 38.0.41 × 2.7 =
  39. 39.0.29 × 3.9 =
  40. 40.3.4 × 1.1 =

Answer key

  1. 2.28
  2. 1.067
  3. 0.231
  4. 1.68
  5. 17.98
  6. 0.464
  7. 0.893
  8. 0.255
  9. 0.414
  10. 26.68
  11. 0.6
  12. 1.833
  13. 2.016
  14. 0.044
  15. 2.484
  16. 3.04
  17. 1.734
  18. 1.005
  19. 0.4
  20. 1.216
  21. 2.542
  22. 1.056
  23. 0.972
  24. 0.12
  25. 0.095
  26. 1.729
  27. 19.98
  28. 0.046
  29. 2.997
  30. 1.817
  31. 0.816
  32. 6.38
  33. 0.051
  34. 1.032
  35. 0.512
  36. 2.822
  37. 16.94
  38. 1.107
  39. 1.131
  40. 3.74

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