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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 257 · 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. 1.0.87 × 3.3 =
  2. 2.2.9 × 0.4 =
  3. 3.7.1 × 2.6 =
  4. 4.1.9 × 0.4 =
  5. 5.2.4 × 3.3 =
  6. 6.6.7 × 2.7 =
  7. 7.0.06 × 3.9 =
  8. 8.0.68 × 3.1 =
  9. 9.2.4 × 0.2 =
  10. 10.0.7 × 1.3 =
  11. 11.0.36 × 1.2 =
  12. 12.0.37 × 1.3 =
  13. 13.8.5 × 0.31 =
  14. 14.0.63 × 1.9 =
  15. 15.2.3 × 0.07 =
  16. 16.0.52 × 0.9 =
  17. 17.0.73 × 3.3 =
  18. 18.2.3 × 0.19 =
  19. 19.0.24 × 3.2 =
  20. 20.4.1 × 2.3 =
  21. 21.0.25 × 2.1 =
  22. 22.1.1 × 3.3 =
  23. 23.9.4 × 0.2 =
  24. 24.2.5 × 2.3 =
  25. 25.0.78 × 3.1 =
  26. 26.8.1 × 0.11 =
  27. 27.5.7 × 1.1 =
  28. 28.0.11 × 3.7 =
  29. 29.1.4 × 1.9 =
  30. 30.8.1 × 1.7 =
  31. 31.5.4 × 1.5 =
  32. 32.0.91 × 3.8 =
  33. 33.1.9 × 0.13 =
  34. 34.0.24 × 2.1 =
  35. 35.2.5 × 0.28 =
  36. 36.2.7 × 0.22 =
  37. 37.1.9 × 0.14 =
  38. 38.0.41 × 0.8 =
  39. 39.0.69 × 2.7 =
  40. 40.0.47 × 0.4 =

Answer key

  1. 2.871
  2. 1.16
  3. 18.46
  4. 0.76
  5. 7.92
  6. 18.09
  7. 0.234
  8. 2.108
  9. 0.48
  10. 0.91
  11. 0.432
  12. 0.481
  13. 2.635
  14. 1.197
  15. 0.161
  16. 0.468
  17. 2.409
  18. 0.437
  19. 0.768
  20. 9.43
  21. 0.525
  22. 3.63
  23. 1.88
  24. 5.75
  25. 2.418
  26. 0.891
  27. 6.27
  28. 0.407
  29. 2.66
  30. 13.77
  31. 8.1
  32. 3.458
  33. 0.247
  34. 0.504
  35. 0.7
  36. 0.594
  37. 0.266
  38. 0.328
  39. 1.863
  40. 0.188

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