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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 634 · 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. 1.5.6 × 0.07 =
  2. 2.8.5 × 1.9 =
  3. 3.7.8 × 0.16 =
  4. 4.0.66 × 1.1 =
  5. 5.1.3 × 0.9 =
  6. 6.0.99 × 3.3 =
  7. 7.0.64 × 0.5 =
  8. 8.7.9 × 0.9 =
  9. 9.4.6 × 2.1 =
  10. 10.2.2 × 3.2 =
  11. 11.0.74 × 1.8 =
  12. 12.2.9 × 3.4 =
  13. 13.0.39 × 1.6 =
  14. 14.5.4 × 0.17 =
  15. 15.5.1 × 0.37 =
  16. 16.8.6 × 0.09 =
  17. 17.7.6 × 0.6 =
  18. 18.0.77 × 3.6 =
  19. 19.0.26 × 0.9 =
  20. 20.0.22 × 3.4 =
  21. 21.4.1 × 3.1 =
  22. 22.0.25 × 3.8 =
  23. 23.0.5 × 1.4 =
  24. 24.0.7 × 2.1 =
  25. 25.0.59 × 2.1 =
  26. 26.0.76 × 3.7 =
  27. 27.9.9 × 3.7 =
  28. 28.0.19 × 2.9 =
  29. 29.7.4 × 0.15 =
  30. 30.2.1 × 3.2 =
  31. 31.3.2 × 2.8 =
  32. 32.7.2 × 3.2 =
  33. 33.0.15 × 2.1 =
  34. 34.0.43 × 3.5 =
  35. 35.0.39 × 1.1 =
  36. 36.0.43 × 0.5 =
  37. 37.1.9 × 0.21 =
  38. 38.5.2 × 0.37 =
  39. 39.0.16 × 2.3 =
  40. 40.0.05 × 2.1 =

Answer key

  1. 0.392
  2. 16.15
  3. 1.248
  4. 0.726
  5. 1.17
  6. 3.267
  7. 0.32
  8. 7.11
  9. 9.66
  10. 7.04
  11. 1.332
  12. 9.86
  13. 0.624
  14. 0.918
  15. 1.887
  16. 0.774
  17. 4.56
  18. 2.772
  19. 0.234
  20. 0.748
  21. 12.71
  22. 0.95
  23. 0.7
  24. 1.47
  25. 1.239
  26. 2.812
  27. 36.63
  28. 0.551
  29. 1.11
  30. 6.72
  31. 8.96
  32. 23.04
  33. 0.315
  34. 1.505
  35. 0.429
  36. 0.215
  37. 0.399
  38. 1.924
  39. 0.368
  40. 0.105

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