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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 556 · 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. 1.9.3 × 0.25 =
  2. 2.1.1 × 3.9 =
  3. 3.3.7 × 0.5 =
  4. 4.8.6 × 2.2 =
  5. 5.0.62 × 2.1 =
  6. 6.6.6 × 1.6 =
  7. 7.0.57 × 0.9 =
  8. 8.0.3 × 0.06 =
  9. 9.0.47 × 1.8 =
  10. 10.0.81 × 3.3 =
  11. 11.4.3 × 3.3 =
  12. 12.3.7 × 0.05 =
  13. 13.0.28 × 2.5 =
  14. 14.0.58 × 2.1 =
  15. 15.2.2 × 0.28 =
  16. 16.6.6 × 3.8 =
  17. 17.0.54 × 3.5 =
  18. 18.1.6 × 2.1 =
  19. 19.9.9 × 0.03 =
  20. 20.0.54 × 2.1 =
  21. 21.0.58 × 2.3 =
  22. 22.0.21 × 2.5 =
  23. 23.0.37 × 3.1 =
  24. 24.1.9 × 1.2 =
  25. 25.1.4 × 0.35 =
  26. 26.0.09 × 0.6 =
  27. 27.1.9 × 0.16 =
  28. 28.1.6 × 3.1 =
  29. 29.0.37 × 3.4 =
  30. 30.6.2 × 0.3 =
  31. 31.0.91 × 2.8 =
  32. 32.0.82 × 3.1 =
  33. 33.0.76 × 0.3 =
  34. 34.9.6 × 0.25 =
  35. 35.4.5 × 0.27 =
  36. 36.0.61 × 0.3 =
  37. 37.7.6 × 0.33 =
  38. 38.0.94 × 3.9 =
  39. 39.8.4 × 0.23 =
  40. 40.2.1 × 0.24 =

Answer key

  1. 2.325
  2. 4.29
  3. 1.85
  4. 18.92
  5. 1.302
  6. 10.56
  7. 0.513
  8. 0.018
  9. 0.846
  10. 2.673
  11. 14.19
  12. 0.185
  13. 0.7
  14. 1.218
  15. 0.616
  16. 25.08
  17. 1.89
  18. 3.36
  19. 0.297
  20. 1.134
  21. 1.334
  22. 0.525
  23. 1.147
  24. 2.28
  25. 0.49
  26. 0.054
  27. 0.304
  28. 4.96
  29. 1.258
  30. 1.86
  31. 2.548
  32. 2.542
  33. 0.228
  34. 2.4
  35. 1.215
  36. 0.183
  37. 2.508
  38. 3.666
  39. 1.932
  40. 0.504

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