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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 680 · 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. 1.1.1 × 0.04 =
  2. 2.9.8 × 0.18 =
  3. 3.1.2 × 0.16 =
  4. 4.9.3 × 0.3 =
  5. 5.0.15 × 0.5 =
  6. 6.1.7 × 3.9 =
  7. 7.0.13 × 0.4 =
  8. 8.0.54 × 0.2 =
  9. 9.0.62 × 2.8 =
  10. 10.2.8 × 0.35 =
  11. 11.1.9 × 0.6 =
  12. 12.0.11 × 1.3 =
  13. 13.0.7 × 0.24 =
  14. 14.0.12 × 1.8 =
  15. 15.0.37 × 2.9 =
  16. 16.0.9 × 0.04 =
  17. 17.0.21 × 2.1 =
  18. 18.0.71 × 1.9 =
  19. 19.6.4 × 2.5 =
  20. 20.5.8 × 3.4 =
  21. 21.2.1 × 0.24 =
  22. 22.8.2 × 0.05 =
  23. 23.0.08 × 0.2 =
  24. 24.0.7 × 0.18 =
  25. 25.0.91 × 3.6 =
  26. 26.0.71 × 2.1 =
  27. 27.0.67 × 3.5 =
  28. 28.9.3 × 0.16 =
  29. 29.0.62 × 2.9 =
  30. 30.4.5 × 0.08 =
  31. 31.4.1 × 0.17 =
  32. 32.0.51 × 2.1 =
  33. 33.0.04 × 1.2 =
  34. 34.0.69 × 3.6 =
  35. 35.0.36 × 3.3 =
  36. 36.0.04 × 0.4 =
  37. 37.3.9 × 3.7 =
  38. 38.0.26 × 3.2 =
  39. 39.0.55 × 3.3 =
  40. 40.6.5 × 0.33 =

Answer key

  1. 0.044
  2. 1.764
  3. 0.192
  4. 2.79
  5. 0.075
  6. 6.63
  7. 0.052
  8. 0.108
  9. 1.736
  10. 0.98
  11. 1.14
  12. 0.143
  13. 0.168
  14. 0.216
  15. 1.073
  16. 0.036
  17. 0.441
  18. 1.349
  19. 16
  20. 19.72
  21. 0.504
  22. 0.41
  23. 0.016
  24. 0.126
  25. 3.276
  26. 1.491
  27. 2.345
  28. 1.488
  29. 1.798
  30. 0.36
  31. 0.697
  32. 1.071
  33. 0.048
  34. 2.484
  35. 1.188
  36. 0.016
  37. 14.43
  38. 0.832
  39. 1.815
  40. 2.145

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