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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 49 · 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. 1.2.4 × 3.4 =
  2. 2.0.6 × 0.18 =
  3. 3.8.6 × 0.12 =
  4. 4.0.16 × 2.9 =
  5. 5.0.92 × 1.1 =
  6. 6.5.9 × 0.33 =
  7. 7.0.43 × 2.7 =
  8. 8.8.3 × 1.8 =
  9. 9.2.5 × 0.6 =
  10. 10.0.28 × 1.9 =
  11. 11.7.5 × 0.35 =
  12. 12.2.7 × 0.11 =
  13. 13.4.9 × 3.8 =
  14. 14.0.11 × 0.7 =
  15. 15.0.44 × 2.3 =
  16. 16.0.2 × 0.7 =
  17. 17.4.5 × 3.5 =
  18. 18.0.39 × 2.1 =
  19. 19.0.92 × 3.4 =
  20. 20.0.56 × 0.9 =
  21. 21.0.31 × 1.5 =
  22. 22.0.7 × 1.2 =
  23. 23.0.03 × 2.5 =
  24. 24.1.3 × 1.3 =
  25. 25.0.65 × 1.9 =
  26. 26.7.4 × 3.3 =
  27. 27.9.6 × 0.38 =
  28. 28.3.7 × 0.27 =
  29. 29.0.12 × 0.9 =
  30. 30.8.2 × 0.12 =
  31. 31.5.4 × 1.5 =
  32. 32.5.9 × 0.16 =
  33. 33.2.9 × 0.6 =
  34. 34.8.8 × 1.6 =
  35. 35.2.4 × 2.5 =
  36. 36.4.8 × 2.4 =
  37. 37.0.41 × 0.5 =
  38. 38.0.16 × 0.2 =
  39. 39.3.5 × 3.3 =
  40. 40.9.1 × 0.13 =

Answer key

  1. 8.16
  2. 0.108
  3. 1.032
  4. 0.464
  5. 1.012
  6. 1.947
  7. 1.161
  8. 14.94
  9. 1.5
  10. 0.532
  11. 2.625
  12. 0.297
  13. 18.62
  14. 0.077
  15. 1.012
  16. 0.14
  17. 15.75
  18. 0.819
  19. 3.128
  20. 0.504
  21. 0.465
  22. 0.84
  23. 0.075
  24. 1.69
  25. 1.235
  26. 24.42
  27. 3.648
  28. 0.999
  29. 0.108
  30. 0.984
  31. 8.1
  32. 0.944
  33. 1.74
  34. 14.08
  35. 6
  36. 11.52
  37. 0.205
  38. 0.032
  39. 11.55
  40. 1.183

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