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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 9 · 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 × 1.1 =
  2. 2.0.14 × 1.5 =
  3. 3.2.8 × 0.38 =
  4. 4.6.5 × 0.13 =
  5. 5.7.1 × 0.3 =
  6. 6.0.58 × 3.1 =
  7. 7.0.07 × 3.5 =
  8. 8.0.13 × 2.9 =
  9. 9.1.2 × 0.9 =
  10. 10.9.1 × 3.1 =
  11. 11.3.3 × 0.12 =
  12. 12.7.7 × 2.1 =
  13. 13.0.83 × 1.7 =
  14. 14.0.15 × 3.8 =
  15. 15.8.3 × 2.5 =
  16. 16.0.13 × 0.4 =
  17. 17.0.95 × 3.7 =
  18. 18.9.1 × 3.5 =
  19. 19.0.9 × 0.03 =
  20. 20.9.6 × 0.04 =
  21. 21.5.4 × 0.31 =
  22. 22.7.2 × 0.7 =
  23. 23.0.47 × 2.4 =
  24. 24.6.5 × 1.4 =
  25. 25.0.44 × 3.9 =
  26. 26.0.81 × 1.6 =
  27. 27.0.81 × 1.3 =
  28. 28.0.22 × 1.6 =
  29. 29.0.19 × 2.1 =
  30. 30.1.2 × 2.2 =
  31. 31.9.3 × 0.25 =
  32. 32.0.03 × 0.7 =
  33. 33.5.5 × 3.5 =
  34. 34.0.37 × 1.8 =
  35. 35.4.1 × 3.1 =
  36. 36.0.31 × 3.5 =
  37. 37.1.1 × 0.9 =
  38. 38.8.6 × 0.2 =
  39. 39.0.13 × 0.5 =
  40. 40.9.2 × 1.8 =

Answer key

  1. 3.63
  2. 0.21
  3. 1.064
  4. 0.845
  5. 2.13
  6. 1.798
  7. 0.245
  8. 0.377
  9. 1.08
  10. 28.21
  11. 0.396
  12. 16.17
  13. 1.411
  14. 0.57
  15. 20.75
  16. 0.052
  17. 3.515
  18. 31.85
  19. 0.027
  20. 0.384
  21. 1.674
  22. 5.04
  23. 1.128
  24. 9.1
  25. 1.716
  26. 1.296
  27. 1.053
  28. 0.352
  29. 0.399
  30. 2.64
  31. 2.325
  32. 0.021
  33. 19.25
  34. 0.666
  35. 12.71
  36. 1.085
  37. 0.99
  38. 1.72
  39. 0.065
  40. 16.56

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