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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 301 · 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. 1.0.17 × 1.7 =
  2. 2.5.8 × 2.2 =
  3. 3.0.91 × 3.5 =
  4. 4.0.55 × 3.2 =
  5. 5.0.63 × 0.4 =
  6. 6.8.1 × 0.05 =
  7. 7.8.6 × 2.8 =
  8. 8.0.89 × 1.4 =
  9. 9.1.1 × 1.6 =
  10. 10.0.78 × 1.1 =
  11. 11.0.36 × 3.1 =
  12. 12.0.24 × 1.4 =
  13. 13.0.97 × 2.1 =
  14. 14.0.6 × 0.32 =
  15. 15.0.21 × 1.7 =
  16. 16.5.4 × 0.37 =
  17. 17.2.9 × 2.8 =
  18. 18.4.7 × 0.33 =
  19. 19.0.61 × 3.3 =
  20. 20.0.19 × 0.3 =
  21. 21.6.6 × 0.15 =
  22. 22.7.6 × 0.07 =
  23. 23.8.3 × 0.29 =
  24. 24.5.1 × 3.8 =
  25. 25.8.5 × 0.21 =
  26. 26.0.75 × 1.1 =
  27. 27.0.22 × 3.1 =
  28. 28.9.2 × 0.28 =
  29. 29.0.42 × 3.9 =
  30. 30.6.1 × 0.29 =
  31. 31.0.59 × 1.1 =
  32. 32.3.8 × 2.9 =
  33. 33.0.29 × 0.5 =
  34. 34.0.56 × 3.9 =
  35. 35.0.48 × 1.1 =
  36. 36.0.11 × 2.7 =
  37. 37.7.7 × 0.31 =
  38. 38.8.3 × 0.21 =
  39. 39.5.9 × 0.28 =
  40. 40.1.1 × 0.21 =

Answer key

  1. 0.289
  2. 12.76
  3. 3.185
  4. 1.76
  5. 0.252
  6. 0.405
  7. 24.08
  8. 1.246
  9. 1.76
  10. 0.858
  11. 1.116
  12. 0.336
  13. 2.037
  14. 0.192
  15. 0.357
  16. 1.998
  17. 8.12
  18. 1.551
  19. 2.013
  20. 0.057
  21. 0.99
  22. 0.532
  23. 2.407
  24. 19.38
  25. 1.785
  26. 0.825
  27. 0.682
  28. 2.576
  29. 1.638
  30. 1.769
  31. 0.649
  32. 11.02
  33. 0.145
  34. 2.184
  35. 0.528
  36. 0.297
  37. 2.387
  38. 1.743
  39. 1.652
  40. 0.231

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