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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 394 · 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. 1.0.9 × 1.9 =
  2. 2.0.99 × 0.4 =
  3. 3.8.2 × 2.9 =
  4. 4.0.08 × 2.5 =
  5. 5.1.6 × 1.1 =
  6. 6.2.7 × 0.25 =
  7. 7.0.61 × 0.7 =
  8. 8.0.04 × 2.4 =
  9. 9.3.9 × 0.29 =
  10. 10.0.69 × 3.4 =
  11. 11.0.31 × 3.5 =
  12. 12.8.1 × 0.8 =
  13. 13.5.8 × 0.37 =
  14. 14.0.91 × 0.6 =
  15. 15.0.61 × 3.6 =
  16. 16.0.41 × 2.6 =
  17. 17.7.9 × 0.32 =
  18. 18.0.37 × 0.3 =
  19. 19.1.4 × 2.6 =
  20. 20.0.47 × 2.9 =
  21. 21.7.5 × 0.2 =
  22. 22.3.1 × 3.8 =
  23. 23.3.9 × 0.3 =
  24. 24.0.45 × 0.6 =
  25. 25.5.3 × 3.1 =
  26. 26.9.6 × 0.7 =
  27. 27.0.4 × 2.8 =
  28. 28.5.7 × 0.19 =
  29. 29.0.78 × 0.3 =
  30. 30.0.42 × 3.6 =
  31. 31.5.1 × 0.31 =
  32. 32.0.53 × 2.5 =
  33. 33.5.1 × 0.12 =
  34. 34.7.1 × 0.11 =
  35. 35.0.46 × 2.4 =
  36. 36.0.39 × 1.7 =
  37. 37.8.7 × 0.26 =
  38. 38.0.27 × 2.1 =
  39. 39.4.3 × 3.9 =
  40. 40.7.1 × 0.07 =

Answer key

  1. 1.71
  2. 0.396
  3. 23.78
  4. 0.2
  5. 1.76
  6. 0.675
  7. 0.427
  8. 0.096
  9. 1.131
  10. 2.346
  11. 1.085
  12. 6.48
  13. 2.146
  14. 0.546
  15. 2.196
  16. 1.066
  17. 2.528
  18. 0.111
  19. 3.64
  20. 1.363
  21. 1.5
  22. 11.78
  23. 1.17
  24. 0.27
  25. 16.43
  26. 6.72
  27. 1.12
  28. 1.083
  29. 0.234
  30. 1.512
  31. 1.581
  32. 1.325
  33. 0.612
  34. 0.781
  35. 1.104
  36. 0.663
  37. 2.262
  38. 0.567
  39. 16.77
  40. 0.497

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