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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 327 · 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. 1.0.76 × 1.4 =
  2. 2.7.5 × 0.29 =
  3. 3.6.4 × 0.21 =
  4. 4.7.5 × 0.11 =
  5. 5.1.5 × 1.5 =
  6. 6.0.63 × 2.1 =
  7. 7.8.3 × 0.09 =
  8. 8.7.1 × 3.9 =
  9. 9.0.71 × 2.7 =
  10. 10.0.87 × 0.3 =
  11. 11.0.08 × 2.4 =
  12. 12.0.19 × 0.6 =
  13. 13.0.73 × 3.3 =
  14. 14.8.1 × 2.8 =
  15. 15.0.73 × 1.9 =
  16. 16.0.99 × 1.5 =
  17. 17.5.1 × 1.8 =
  18. 18.0.07 × 3.1 =
  19. 19.8.7 × 1.9 =
  20. 20.0.46 × 1.4 =
  21. 21.6.8 × 0.8 =
  22. 22.0.85 × 3.9 =
  23. 23.2.1 × 0.7 =
  24. 24.4.1 × 1.1 =
  25. 25.6.7 × 0.09 =
  26. 26.0.3 × 1.5 =
  27. 27.0.32 × 0.5 =
  28. 28.1.6 × 0.29 =
  29. 29.0.47 × 0.7 =
  30. 30.2.1 × 0.34 =
  31. 31.9.8 × 1.1 =
  32. 32.0.92 × 0.8 =
  33. 33.0.55 × 0.4 =
  34. 34.0.35 × 0.6 =
  35. 35.0.11 × 1.2 =
  36. 36.0.6 × 0.21 =
  37. 37.0.11 × 3.2 =
  38. 38.9.1 × 2.6 =
  39. 39.0.24 × 0.8 =
  40. 40.0.17 × 1.8 =

Answer key

  1. 1.064
  2. 2.175
  3. 1.344
  4. 0.825
  5. 2.25
  6. 1.323
  7. 0.747
  8. 27.69
  9. 1.917
  10. 0.261
  11. 0.192
  12. 0.114
  13. 2.409
  14. 22.68
  15. 1.387
  16. 1.485
  17. 9.18
  18. 0.217
  19. 16.53
  20. 0.644
  21. 5.44
  22. 3.315
  23. 1.47
  24. 4.51
  25. 0.603
  26. 0.45
  27. 0.16
  28. 0.464
  29. 0.329
  30. 0.714
  31. 10.78
  32. 0.736
  33. 0.22
  34. 0.21
  35. 0.132
  36. 0.126
  37. 0.352
  38. 23.66
  39. 0.192
  40. 0.306

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