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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 379 · 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. 1.0.8 × 0.5 =
  2. 2.0.49 × 2.7 =
  3. 3.6.1 × 2.9 =
  4. 4.1.8 × 2.2 =
  5. 5.0.3 × 0.05 =
  6. 6.0.17 × 0.3 =
  7. 7.6.3 × 0.07 =
  8. 8.0.86 × 1.9 =
  9. 9.6.7 × 3.1 =
  10. 10.0.77 × 3.4 =
  11. 11.6.4 × 0.3 =
  12. 12.0.82 × 1.1 =
  13. 13.0.84 × 2.4 =
  14. 14.5.1 × 0.07 =
  15. 15.0.27 × 0.8 =
  16. 16.3.3 × 0.7 =
  17. 17.0.12 × 2.9 =
  18. 18.0.81 × 3.4 =
  19. 19.3.9 × 1.1 =
  20. 20.0.3 × 2.9 =
  21. 21.0.8 × 2.6 =
  22. 22.0.6 × 0.38 =
  23. 23.0.38 × 0.3 =
  24. 24.0.62 × 2.3 =
  25. 25.4.2 × 3.9 =
  26. 26.0.71 × 2.9 =
  27. 27.9.1 × 0.5 =
  28. 28.0.71 × 2.4 =
  29. 29.2.9 × 1.6 =
  30. 30.0.32 × 3.8 =
  31. 31.2.3 × 0.24 =
  32. 32.4.9 × 0.28 =
  33. 33.0.76 × 1.5 =
  34. 34.0.49 × 3.5 =
  35. 35.0.84 × 2.2 =
  36. 36.0.47 × 1.2 =
  37. 37.0.67 × 0.9 =
  38. 38.7.2 × 2.2 =
  39. 39.0.8 × 3.1 =
  40. 40.0.43 × 0.9 =

Answer key

  1. 0.4
  2. 1.323
  3. 17.69
  4. 3.96
  5. 0.015
  6. 0.051
  7. 0.441
  8. 1.634
  9. 20.77
  10. 2.618
  11. 1.92
  12. 0.902
  13. 2.016
  14. 0.357
  15. 0.216
  16. 2.31
  17. 0.348
  18. 2.754
  19. 4.29
  20. 0.87
  21. 2.08
  22. 0.228
  23. 0.114
  24. 1.426
  25. 16.38
  26. 2.059
  27. 4.55
  28. 1.704
  29. 4.64
  30. 1.216
  31. 0.552
  32. 1.372
  33. 1.14
  34. 1.715
  35. 1.848
  36. 0.564
  37. 0.603
  38. 15.84
  39. 2.48
  40. 0.387

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