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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 591 · 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. 1.0.2 × 0.09 =
  2. 2.8.1 × 1.6 =
  3. 3.6.1 × 0.2 =
  4. 4.9.1 × 0.2 =
  5. 5.1.3 × 0.04 =
  6. 6.1.3 × 0.09 =
  7. 7.1.1 × 1.1 =
  8. 8.2.4 × 1.1 =
  9. 9.0.5 × 2.2 =
  10. 10.0.75 × 3.4 =
  11. 11.0.71 × 1.2 =
  12. 12.2.4 × 1.1 =
  13. 13.4.1 × 0.8 =
  14. 14.1.6 × 0.11 =
  15. 15.0.04 × 3.6 =
  16. 16.4.2 × 1.4 =
  17. 17.4.2 × 0.19 =
  18. 18.4.8 × 0.9 =
  19. 19.7.2 × 0.11 =
  20. 20.5.3 × 0.11 =
  21. 21.3.3 × 2.4 =
  22. 22.0.38 × 1.6 =
  23. 23.4.2 × 2.3 =
  24. 24.4.1 × 0.39 =
  25. 25.3.1 × 3.1 =
  26. 26.1.5 × 0.9 =
  27. 27.0.7 × 0.18 =
  28. 28.4.2 × 0.39 =
  29. 29.0.61 × 2.5 =
  30. 30.9.1 × 2.9 =
  31. 31.0.74 × 2.5 =
  32. 32.6.5 × 3.4 =
  33. 33.9.6 × 0.29 =
  34. 34.2.1 × 0.21 =
  35. 35.7.6 × 1.8 =
  36. 36.0.7 × 0.31 =
  37. 37.7.9 × 0.08 =
  38. 38.2.9 × 2.1 =
  39. 39.0.37 × 0.3 =
  40. 40.9.7 × 0.31 =

Answer key

  1. 0.018
  2. 12.96
  3. 1.22
  4. 1.82
  5. 0.052
  6. 0.117
  7. 1.21
  8. 2.64
  9. 1.1
  10. 2.55
  11. 0.852
  12. 2.64
  13. 3.28
  14. 0.176
  15. 0.144
  16. 5.88
  17. 0.798
  18. 4.32
  19. 0.792
  20. 0.583
  21. 7.92
  22. 0.608
  23. 9.66
  24. 1.599
  25. 9.61
  26. 1.35
  27. 0.126
  28. 1.638
  29. 1.525
  30. 26.39
  31. 1.85
  32. 22.1
  33. 2.784
  34. 0.441
  35. 13.68
  36. 0.217
  37. 0.632
  38. 6.09
  39. 0.111
  40. 3.007

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