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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 249 · 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. 1.6.9 × 0.3 =
  2. 2.3.2 × 0.06 =
  3. 3.0.09 × 2.9 =
  4. 4.0.69 × 2.4 =
  5. 5.0.19 × 1.7 =
  6. 6.0.69 × 0.8 =
  7. 7.2.4 × 0.24 =
  8. 8.0.46 × 3.5 =
  9. 9.5.6 × 0.37 =
  10. 10.0.32 × 1.4 =
  11. 11.9.5 × 2.1 =
  12. 12.3.1 × 2.1 =
  13. 13.6.2 × 0.8 =
  14. 14.1.8 × 0.5 =
  15. 15.0.74 × 3.4 =
  16. 16.3.1 × 0.33 =
  17. 17.5.8 × 0.15 =
  18. 18.0.56 × 2.1 =
  19. 19.5.6 × 0.13 =
  20. 20.0.9 × 2.2 =
  21. 21.4.5 × 3.9 =
  22. 22.0.02 × 2.1 =
  23. 23.8.8 × 0.09 =
  24. 24.7.5 × 1.4 =
  25. 25.0.62 × 3.7 =
  26. 26.0.97 × 0.9 =
  27. 27.5.1 × 0.6 =
  28. 28.1.1 × 0.3 =
  29. 29.2.4 × 0.22 =
  30. 30.0.39 × 1.6 =
  31. 31.7.1 × 2.8 =
  32. 32.0.11 × 2.2 =
  33. 33.8.6 × 0.21 =
  34. 34.7.6 × 3.5 =
  35. 35.1.1 × 0.25 =
  36. 36.0.61 × 1.2 =
  37. 37.2.1 × 0.2 =
  38. 38.0.11 × 3.5 =
  39. 39.9.6 × 3.8 =
  40. 40.0.52 × 1.3 =

Answer key

  1. 2.07
  2. 0.192
  3. 0.261
  4. 1.656
  5. 0.323
  6. 0.552
  7. 0.576
  8. 1.61
  9. 2.072
  10. 0.448
  11. 19.95
  12. 6.51
  13. 4.96
  14. 0.9
  15. 2.516
  16. 1.023
  17. 0.87
  18. 1.176
  19. 0.728
  20. 1.98
  21. 17.55
  22. 0.042
  23. 0.792
  24. 10.5
  25. 2.294
  26. 0.873
  27. 3.06
  28. 0.33
  29. 0.528
  30. 0.624
  31. 19.88
  32. 0.242
  33. 1.806
  34. 26.6
  35. 0.275
  36. 0.732
  37. 0.42
  38. 0.385
  39. 36.48
  40. 0.676

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