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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 16 · 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. 1.3.4 × 3.1 =
  2. 2.0.68 × 2.1 =
  3. 3.0.35 × 0.3 =
  4. 4.2.6 × 0.21 =
  5. 5.0.18 × 1.1 =
  6. 6.0.94 × 3.1 =
  7. 7.6.7 × 0.7 =
  8. 8.1.1 × 0.8 =
  9. 9.3.5 × 0.21 =
  10. 10.7.8 × 0.21 =
  11. 11.0.09 × 1.6 =
  12. 12.1.4 × 2.2 =
  13. 13.6.2 × 0.19 =
  14. 14.0.6 × 0.03 =
  15. 15.0.18 × 0.8 =
  16. 16.0.03 × 3.7 =
  17. 17.4.4 × 0.08 =
  18. 18.0.61 × 1.5 =
  19. 19.0.3 × 1.1 =
  20. 20.4.8 × 0.6 =
  21. 21.0.46 × 3.5 =
  22. 22.4.9 × 1.6 =
  23. 23.0.69 × 3.3 =
  24. 24.7.2 × 0.34 =
  25. 25.0.27 × 0.6 =
  26. 26.3.3 × 0.27 =
  27. 27.0.54 × 0.6 =
  28. 28.4.4 × 0.7 =
  29. 29.0.99 × 1.4 =
  30. 30.0.51 × 3.3 =
  31. 31.0.74 × 0.7 =
  32. 32.0.95 × 2.7 =
  33. 33.7.2 × 0.03 =
  34. 34.7.4 × 0.4 =
  35. 35.0.31 × 0.7 =
  36. 36.0.47 × 0.9 =
  37. 37.0.56 × 0.7 =
  38. 38.0.34 × 0.4 =
  39. 39.0.27 × 1.7 =
  40. 40.0.49 × 2.1 =

Answer key

  1. 10.54
  2. 1.428
  3. 0.105
  4. 0.546
  5. 0.198
  6. 2.914
  7. 4.69
  8. 0.88
  9. 0.735
  10. 1.638
  11. 0.144
  12. 3.08
  13. 1.178
  14. 0.018
  15. 0.144
  16. 0.111
  17. 0.352
  18. 0.915
  19. 0.33
  20. 2.88
  21. 1.61
  22. 7.84
  23. 2.277
  24. 2.448
  25. 0.162
  26. 0.891
  27. 0.324
  28. 3.08
  29. 1.386
  30. 1.683
  31. 0.518
  32. 2.565
  33. 0.216
  34. 2.96
  35. 0.217
  36. 0.423
  37. 0.392
  38. 0.136
  39. 0.459
  40. 1.029

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