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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 131 · 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. 1.0.76 × 3.1 =
  2. 2.0.06 × 1.6 =
  3. 3.0.71 × 1.1 =
  4. 4.4.6 × 0.9 =
  5. 5.0.94 × 1.5 =
  6. 6.3.5 × 0.5 =
  7. 7.1.3 × 0.05 =
  8. 8.0.05 × 0.9 =
  9. 9.0.78 × 1.2 =
  10. 10.0.06 × 2.1 =
  11. 11.6.1 × 0.13 =
  12. 12.0.24 × 2.1 =
  13. 13.0.31 × 2.7 =
  14. 14.1.6 × 0.08 =
  15. 15.6.2 × 0.11 =
  16. 16.0.51 × 1.1 =
  17. 17.7.4 × 0.11 =
  18. 18.0.44 × 2.1 =
  19. 19.5.1 × 1.2 =
  20. 20.9.3 × 0.32 =
  21. 21.7.1 × 0.3 =
  22. 22.4.2 × 0.38 =
  23. 23.2.7 × 3.2 =
  24. 24.1.2 × 1.7 =
  25. 25.0.96 × 0.5 =
  26. 26.0.9 × 0.11 =
  27. 27.0.27 × 3.2 =
  28. 28.0.16 × 1.4 =
  29. 29.7.9 × 3.4 =
  30. 30.0.15 × 1.4 =
  31. 31.1.1 × 0.12 =
  32. 32.8.9 × 3.6 =
  33. 33.0.53 × 2.9 =
  34. 34.5.9 × 0.4 =
  35. 35.0.04 × 2.4 =
  36. 36.0.25 × 2.8 =
  37. 37.0.5 × 0.9 =
  38. 38.2.2 × 0.38 =
  39. 39.6.8 × 0.07 =
  40. 40.3.4 × 0.7 =

Answer key

  1. 2.356
  2. 0.096
  3. 0.781
  4. 4.14
  5. 1.41
  6. 1.75
  7. 0.065
  8. 0.045
  9. 0.936
  10. 0.126
  11. 0.793
  12. 0.504
  13. 0.837
  14. 0.128
  15. 0.682
  16. 0.561
  17. 0.814
  18. 0.924
  19. 6.12
  20. 2.976
  21. 2.13
  22. 1.596
  23. 8.64
  24. 2.04
  25. 0.48
  26. 0.099
  27. 0.864
  28. 0.224
  29. 26.86
  30. 0.21
  31. 0.132
  32. 32.04
  33. 1.537
  34. 2.36
  35. 0.096
  36. 0.7
  37. 0.45
  38. 0.836
  39. 0.476
  40. 2.38

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