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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 347 · 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. 1.3.3 × 0.3 =
  2. 2.2.8 × 0.31 =
  3. 3.0.5 × 0.31 =
  4. 4.5.1 × 0.19 =
  5. 5.1.2 × 0.12 =
  6. 6.0.82 × 0.9 =
  7. 7.5.6 × 0.33 =
  8. 8.9.1 × 1.3 =
  9. 9.4.2 × 0.3 =
  10. 10.0.21 × 3.1 =
  11. 11.0.72 × 1.7 =
  12. 12.0.82 × 2.5 =
  13. 13.5.7 × 0.12 =
  14. 14.7.1 × 0.09 =
  15. 15.7.7 × 0.3 =
  16. 16.3.6 × 0.02 =
  17. 17.0.6 × 0.05 =
  18. 18.1.3 × 0.13 =
  19. 19.1.1 × 0.3 =
  20. 20.0.96 × 2.6 =
  21. 21.8.5 × 0.34 =
  22. 22.0.62 × 2.2 =
  23. 23.0.2 × 0.07 =
  24. 24.0.68 × 1.9 =
  25. 25.0.91 × 1.5 =
  26. 26.4.6 × 0.6 =
  27. 27.7.8 × 1.8 =
  28. 28.0.96 × 3.1 =
  29. 29.8.7 × 0.34 =
  30. 30.6.5 × 0.06 =
  31. 31.0.32 × 3.6 =
  32. 32.0.77 × 3.4 =
  33. 33.0.45 × 0.7 =
  34. 34.0.75 × 3.9 =
  35. 35.0.77 × 0.4 =
  36. 36.0.56 × 1.5 =
  37. 37.0.57 × 1.2 =
  38. 38.5.8 × 3.4 =
  39. 39.7.8 × 2.3 =
  40. 40.0.45 × 3.6 =

Answer key

  1. 0.99
  2. 0.868
  3. 0.155
  4. 0.969
  5. 0.144
  6. 0.738
  7. 1.848
  8. 11.83
  9. 1.26
  10. 0.651
  11. 1.224
  12. 2.05
  13. 0.684
  14. 0.639
  15. 2.31
  16. 0.072
  17. 0.03
  18. 0.169
  19. 0.33
  20. 2.496
  21. 2.89
  22. 1.364
  23. 0.014
  24. 1.292
  25. 1.365
  26. 2.76
  27. 14.04
  28. 2.976
  29. 2.958
  30. 0.39
  31. 1.152
  32. 2.618
  33. 0.315
  34. 2.925
  35. 0.308
  36. 0.84
  37. 0.684
  38. 19.72
  39. 17.94
  40. 1.62

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