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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 137 · 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. 1.6.4 × 0.5 =
  2. 2.0.7 × 2.1 =
  3. 3.0.95 × 1.1 =
  4. 4.4.7 × 1.4 =
  5. 5.0.95 × 0.4 =
  6. 6.2.5 × 1.5 =
  7. 7.0.39 × 1.1 =
  8. 8.0.98 × 0.9 =
  9. 9.2.8 × 0.04 =
  10. 10.4.5 × 0.2 =
  11. 11.0.27 × 1.1 =
  12. 12.0.09 × 3.2 =
  13. 13.0.07 × 0.2 =
  14. 14.2.3 × 0.38 =
  15. 15.6.3 × 2.2 =
  16. 16.0.99 × 2.4 =
  17. 17.0.63 × 2.4 =
  18. 18.0.14 × 2.1 =
  19. 19.0.3 × 0.02 =
  20. 20.5.7 × 0.03 =
  21. 21.2.6 × 1.5 =
  22. 22.9.1 × 3.8 =
  23. 23.7.7 × 0.36 =
  24. 24.8.1 × 1.2 =
  25. 25.1.8 × 0.24 =
  26. 26.4.9 × 3.7 =
  27. 27.0.81 × 2.8 =
  28. 28.9.2 × 0.06 =
  29. 29.0.49 × 2.8 =
  30. 30.3.1 × 2.1 =
  31. 31.0.13 × 1.5 =
  32. 32.0.02 × 3.9 =
  33. 33.0.5 × 0.31 =
  34. 34.0.08 × 1.9 =
  35. 35.1.1 × 0.31 =
  36. 36.0.26 × 1.3 =
  37. 37.8.9 × 0.7 =
  38. 38.0.21 × 0.5 =
  39. 39.6.9 × 0.17 =
  40. 40.2.5 × 1.7 =

Answer key

  1. 3.2
  2. 1.47
  3. 1.045
  4. 6.58
  5. 0.38
  6. 3.75
  7. 0.429
  8. 0.882
  9. 0.112
  10. 0.9
  11. 0.297
  12. 0.288
  13. 0.014
  14. 0.874
  15. 13.86
  16. 2.376
  17. 1.512
  18. 0.294
  19. 0.006
  20. 0.171
  21. 3.9
  22. 34.58
  23. 2.772
  24. 9.72
  25. 0.432
  26. 18.13
  27. 2.268
  28. 0.552
  29. 1.372
  30. 6.51
  31. 0.195
  32. 0.078
  33. 0.155
  34. 0.152
  35. 0.341
  36. 0.338
  37. 6.23
  38. 0.105
  39. 1.173
  40. 4.25

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