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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 753 · 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. 1.0.99 × 1.6 =
  2. 2.0.24 × 0.5 =
  3. 3.0.11 × 1.1 =
  4. 4.9.6 × 1.3 =
  5. 5.0.51 × 1.4 =
  6. 6.0.09 × 1.9 =
  7. 7.3.4 × 3.2 =
  8. 8.0.18 × 0.6 =
  9. 9.4.2 × 0.29 =
  10. 10.6.4 × 0.09 =
  11. 11.4.9 × 0.27 =
  12. 12.2.4 × 0.23 =
  13. 13.5.1 × 0.13 =
  14. 14.0.35 × 0.7 =
  15. 15.0.87 × 1.9 =
  16. 16.5.2 × 2.7 =
  17. 17.0.21 × 1.3 =
  18. 18.9.1 × 1.1 =
  19. 19.2.1 × 3.1 =
  20. 20.0.77 × 3.6 =
  21. 21.1.4 × 3.8 =
  22. 22.0.52 × 0.4 =
  23. 23.4.4 × 0.18 =
  24. 24.0.14 × 1.3 =
  25. 25.0.92 × 0.3 =
  26. 26.9.6 × 0.25 =
  27. 27.5.8 × 0.08 =
  28. 28.0.17 × 2.5 =
  29. 29.0.28 × 1.3 =
  30. 30.0.83 × 3.1 =
  31. 31.0.04 × 2.8 =
  32. 32.9.1 × 0.24 =
  33. 33.1.5 × 0.02 =
  34. 34.0.65 × 3.1 =
  35. 35.3.2 × 3.6 =
  36. 36.4.9 × 2.9 =
  37. 37.9.3 × 0.25 =
  38. 38.1.2 × 2.6 =
  39. 39.0.91 × 3.3 =
  40. 40.0.22 × 2.2 =

Answer key

  1. 1.584
  2. 0.12
  3. 0.121
  4. 12.48
  5. 0.714
  6. 0.171
  7. 10.88
  8. 0.108
  9. 1.218
  10. 0.576
  11. 1.323
  12. 0.552
  13. 0.663
  14. 0.245
  15. 1.653
  16. 14.04
  17. 0.273
  18. 10.01
  19. 6.51
  20. 2.772
  21. 5.32
  22. 0.208
  23. 0.792
  24. 0.182
  25. 0.276
  26. 2.4
  27. 0.464
  28. 0.425
  29. 0.364
  30. 2.573
  31. 0.112
  32. 2.184
  33. 0.03
  34. 2.015
  35. 11.52
  36. 14.21
  37. 2.325
  38. 3.12
  39. 3.003
  40. 0.484

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