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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 422 · 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. 1.0.3 × 2.8 =
  2. 2.6.1 × 1.1 =
  3. 3.0.08 × 3.2 =
  4. 4.1.9 × 0.14 =
  5. 5.7.9 × 0.17 =
  6. 6.3.2 × 3.7 =
  7. 7.0.12 × 3.3 =
  8. 8.8.3 × 0.37 =
  9. 9.2.4 × 0.21 =
  10. 10.0.61 × 1.2 =
  11. 11.5.6 × 2.1 =
  12. 12.0.59 × 3.6 =
  13. 13.0.91 × 3.8 =
  14. 14.0.68 × 3.8 =
  15. 15.4.1 × 0.32 =
  16. 16.6.1 × 0.23 =
  17. 17.0.8 × 1.3 =
  18. 18.3.7 × 0.21 =
  19. 19.0.82 × 0.6 =
  20. 20.3.6 × 1.2 =
  21. 21.0.67 × 3.2 =
  22. 22.0.36 × 3.7 =
  23. 23.0.54 × 3.8 =
  24. 24.0.88 × 3.3 =
  25. 25.3.5 × 0.6 =
  26. 26.8.5 × 1.1 =
  27. 27.9.7 × 0.04 =
  28. 28.3.4 × 0.02 =
  29. 29.0.63 × 2.8 =
  30. 30.0.3 × 0.12 =
  31. 31.4.4 × 0.06 =
  32. 32.1.7 × 2.7 =
  33. 33.2.2 × 0.11 =
  34. 34.9.4 × 0.07 =
  35. 35.9.4 × 1.4 =
  36. 36.9.6 × 0.19 =
  37. 37.0.11 × 2.7 =
  38. 38.5.3 × 0.19 =
  39. 39.7.9 × 2.1 =
  40. 40.0.04 × 2.1 =

Answer key

  1. 0.84
  2. 6.71
  3. 0.256
  4. 0.266
  5. 1.343
  6. 11.84
  7. 0.396
  8. 3.071
  9. 0.504
  10. 0.732
  11. 11.76
  12. 2.124
  13. 3.458
  14. 2.584
  15. 1.312
  16. 1.403
  17. 1.04
  18. 0.777
  19. 0.492
  20. 4.32
  21. 2.144
  22. 1.332
  23. 2.052
  24. 2.904
  25. 2.1
  26. 9.35
  27. 0.388
  28. 0.068
  29. 1.764
  30. 0.036
  31. 0.264
  32. 4.59
  33. 0.242
  34. 0.658
  35. 13.16
  36. 1.824
  37. 0.297
  38. 1.007
  39. 16.59
  40. 0.084

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