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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 570 · 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. 1.0.16 × 0.7 =
  2. 2.6.1 × 3.1 =
  3. 3.1.9 × 0.31 =
  4. 4.1.3 × 0.21 =
  5. 5.7.2 × 0.29 =
  6. 6.0.56 × 0.6 =
  7. 7.0.47 × 2.4 =
  8. 8.0.09 × 2.4 =
  9. 9.7.7 × 1.1 =
  10. 10.7.6 × 1.5 =
  11. 11.5.7 × 0.25 =
  12. 12.3.2 × 0.7 =
  13. 13.0.93 × 1.1 =
  14. 14.6.1 × 0.19 =
  15. 15.1.5 × 0.4 =
  16. 16.0.09 × 0.7 =
  17. 17.6.1 × 2.8 =
  18. 18.0.64 × 0.8 =
  19. 19.2.1 × 0.24 =
  20. 20.8.6 × 2.9 =
  21. 21.0.28 × 1.7 =
  22. 22.0.8 × 0.36 =
  23. 23.0.4 × 0.09 =
  24. 24.7.3 × 2.3 =
  25. 25.0.37 × 0.8 =
  26. 26.9.1 × 0.36 =
  27. 27.0.6 × 0.22 =
  28. 28.8.3 × 1.6 =
  29. 29.4.9 × 0.38 =
  30. 30.2.8 × 3.4 =
  31. 31.0.78 × 0.5 =
  32. 32.0.02 × 2.7 =
  33. 33.0.31 × 1.6 =
  34. 34.0.57 × 1.2 =
  35. 35.8.1 × 2.9 =
  36. 36.0.21 × 1.4 =
  37. 37.0.27 × 3.2 =
  38. 38.7.3 × 3.6 =
  39. 39.0.04 × 3.2 =
  40. 40.0.26 × 0.6 =

Answer key

  1. 0.112
  2. 18.91
  3. 0.589
  4. 0.273
  5. 2.088
  6. 0.336
  7. 1.128
  8. 0.216
  9. 8.47
  10. 11.4
  11. 1.425
  12. 2.24
  13. 1.023
  14. 1.159
  15. 0.6
  16. 0.063
  17. 17.08
  18. 0.512
  19. 0.504
  20. 24.94
  21. 0.476
  22. 0.288
  23. 0.036
  24. 16.79
  25. 0.296
  26. 3.276
  27. 0.132
  28. 13.28
  29. 1.862
  30. 9.52
  31. 0.39
  32. 0.054
  33. 0.496
  34. 0.684
  35. 23.49
  36. 0.294
  37. 0.864
  38. 26.28
  39. 0.128
  40. 0.156

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