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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 163 · 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. 1.6.9 × 0.7 =
  2. 2.0.61 × 2.6 =
  3. 3.1.8 × 0.5 =
  4. 4.0.41 × 2.4 =
  5. 5.9.7 × 2.1 =
  6. 6.8.6 × 0.27 =
  7. 7.8.7 × 0.07 =
  8. 8.2.7 × 0.5 =
  9. 9.0.78 × 2.6 =
  10. 10.8.8 × 0.19 =
  11. 11.0.66 × 1.1 =
  12. 12.0.71 × 3.9 =
  13. 13.5.1 × 0.23 =
  14. 14.2.2 × 0.16 =
  15. 15.7.3 × 0.4 =
  16. 16.6.6 × 3.1 =
  17. 17.0.89 × 3.5 =
  18. 18.0.98 × 0.4 =
  19. 19.7.7 × 2.3 =
  20. 20.9.3 × 0.31 =
  21. 21.7.4 × 0.2 =
  22. 22.4.1 × 2.8 =
  23. 23.0.89 × 2.1 =
  24. 24.0.91 × 3.3 =
  25. 25.0.46 × 3.1 =
  26. 26.4.7 × 2.8 =
  27. 27.0.73 × 3.2 =
  28. 28.4.4 × 0.7 =
  29. 29.2.4 × 0.19 =
  30. 30.0.81 × 2.1 =
  31. 31.0.06 × 1.6 =
  32. 32.0.68 × 2.5 =
  33. 33.0.96 × 3.6 =
  34. 34.1.2 × 0.04 =
  35. 35.0.44 × 1.2 =
  36. 36.4.3 × 0.24 =
  37. 37.0.34 × 3.2 =
  38. 38.1.2 × 0.2 =
  39. 39.3.3 × 0.11 =
  40. 40.3.1 × 1.8 =

Answer key

  1. 4.83
  2. 1.586
  3. 0.9
  4. 0.984
  5. 20.37
  6. 2.322
  7. 0.609
  8. 1.35
  9. 2.028
  10. 1.672
  11. 0.726
  12. 2.769
  13. 1.173
  14. 0.352
  15. 2.92
  16. 20.46
  17. 3.115
  18. 0.392
  19. 17.71
  20. 2.883
  21. 1.48
  22. 11.48
  23. 1.869
  24. 3.003
  25. 1.426
  26. 13.16
  27. 2.336
  28. 3.08
  29. 0.456
  30. 1.701
  31. 0.096
  32. 1.7
  33. 3.456
  34. 0.048
  35. 0.528
  36. 1.032
  37. 1.088
  38. 0.24
  39. 0.363
  40. 5.58

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