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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 462 · 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. 1.0.65 × 3.2 =
  2. 2.7.1 × 2.5 =
  3. 3.4.5 × 0.31 =
  4. 4.5.1 × 2.8 =
  5. 5.0.23 × 3.8 =
  6. 6.0.67 × 1.7 =
  7. 7.2.8 × 2.9 =
  8. 8.8.2 × 1.1 =
  9. 9.7.9 × 1.2 =
  10. 10.9.6 × 1.1 =
  11. 11.0.56 × 3.7 =
  12. 12.0.27 × 0.4 =
  13. 13.0.47 × 0.4 =
  14. 14.3.7 × 0.9 =
  15. 15.1.6 × 1.9 =
  16. 16.0.77 × 0.6 =
  17. 17.1.4 × 3.1 =
  18. 18.5.1 × 0.12 =
  19. 19.3.4 × 1.1 =
  20. 20.0.34 × 0.4 =
  21. 21.7.1 × 1.8 =
  22. 22.0.11 × 1.5 =
  23. 23.0.28 × 3.1 =
  24. 24.3.1 × 1.5 =
  25. 25.3.2 × 3.5 =
  26. 26.0.61 × 2.5 =
  27. 27.0.49 × 3.6 =
  28. 28.0.41 × 2.2 =
  29. 29.7.8 × 2.4 =
  30. 30.0.56 × 2.1 =
  31. 31.4.4 × 0.19 =
  32. 32.7.8 × 0.4 =
  33. 33.0.92 × 1.6 =
  34. 34.0.74 × 0.5 =
  35. 35.0.93 × 0.2 =
  36. 36.2.4 × 2.7 =
  37. 37.3.2 × 0.19 =
  38. 38.0.22 × 2.6 =
  39. 39.3.6 × 0.8 =
  40. 40.8.9 × 1.1 =

Answer key

  1. 2.08
  2. 17.75
  3. 1.395
  4. 14.28
  5. 0.874
  6. 1.139
  7. 8.12
  8. 9.02
  9. 9.48
  10. 10.56
  11. 2.072
  12. 0.108
  13. 0.188
  14. 3.33
  15. 3.04
  16. 0.462
  17. 4.34
  18. 0.612
  19. 3.74
  20. 0.136
  21. 12.78
  22. 0.165
  23. 0.868
  24. 4.65
  25. 11.2
  26. 1.525
  27. 1.764
  28. 0.902
  29. 18.72
  30. 1.176
  31. 0.836
  32. 3.12
  33. 1.472
  34. 0.37
  35. 0.186
  36. 6.48
  37. 0.608
  38. 0.572
  39. 2.88
  40. 9.79

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