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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 25 · 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. 1.2.3 × 2.1 =
  2. 2.1.9 × 1.1 =
  3. 3.2.6 × 0.19 =
  4. 4.4.8 × 2.9 =
  5. 5.5.9 × 3.7 =
  6. 6.8.3 × 0.23 =
  7. 7.2.1 × 2.9 =
  8. 8.0.44 × 1.1 =
  9. 9.6.8 × 0.29 =
  10. 10.7.1 × 3.2 =
  11. 11.0.08 × 1.9 =
  12. 12.0.52 × 2.4 =
  13. 13.4.1 × 1.8 =
  14. 14.0.68 × 1.8 =
  15. 15.0.92 × 0.5 =
  16. 16.0.2 × 0.39 =
  17. 17.9.9 × 0.06 =
  18. 18.2.4 × 0.36 =
  19. 19.9.5 × 0.07 =
  20. 20.0.89 × 1.5 =
  21. 21.7.3 × 0.29 =
  22. 22.0.87 × 1.7 =
  23. 23.0.53 × 3.1 =
  24. 24.6.8 × 0.39 =
  25. 25.1.1 × 0.13 =
  26. 26.0.92 × 3.3 =
  27. 27.0.91 × 0.9 =
  28. 28.0.99 × 2.8 =
  29. 29.4.7 × 2.2 =
  30. 30.0.71 × 3.2 =
  31. 31.3.9 × 0.19 =
  32. 32.4.1 × 0.39 =
  33. 33.3.3 × 0.38 =
  34. 34.0.28 × 1.5 =
  35. 35.1.4 × 2.6 =
  36. 36.0.12 × 0.8 =
  37. 37.0.54 × 0.4 =
  38. 38.5.2 × 0.2 =
  39. 39.0.2 × 1.8 =
  40. 40.4.2 × 0.04 =

Answer key

  1. 4.83
  2. 2.09
  3. 0.494
  4. 13.92
  5. 21.83
  6. 1.909
  7. 6.09
  8. 0.484
  9. 1.972
  10. 22.72
  11. 0.152
  12. 1.248
  13. 7.38
  14. 1.224
  15. 0.46
  16. 0.078
  17. 0.594
  18. 0.864
  19. 0.665
  20. 1.335
  21. 2.117
  22. 1.479
  23. 1.643
  24. 2.652
  25. 0.143
  26. 3.036
  27. 0.819
  28. 2.772
  29. 10.34
  30. 2.272
  31. 0.741
  32. 1.599
  33. 1.254
  34. 0.42
  35. 3.64
  36. 0.096
  37. 0.216
  38. 1.04
  39. 0.36
  40. 0.168

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