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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 679 · 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. 1.0.45 × 0.8 =
  2. 2.3.8 × 0.12 =
  3. 3.7.7 × 0.21 =
  4. 4.0.37 × 3.7 =
  5. 5.0.11 × 3.6 =
  6. 6.6.3 × 1.6 =
  7. 7.0.89 × 2.4 =
  8. 8.0.56 × 3.5 =
  9. 9.2.2 × 3.9 =
  10. 10.0.76 × 2.1 =
  11. 11.5.4 × 0.36 =
  12. 12.0.26 × 2.1 =
  13. 13.1.2 × 0.34 =
  14. 14.0.45 × 2.7 =
  15. 15.9.1 × 3.2 =
  16. 16.0.14 × 0.7 =
  17. 17.5.4 × 0.06 =
  18. 18.0.59 × 3.1 =
  19. 19.0.97 × 3.2 =
  20. 20.0.3 × 2.3 =
  21. 21.7.2 × 0.14 =
  22. 22.0.45 × 1.1 =
  23. 23.6.1 × 0.02 =
  24. 24.0.31 × 0.6 =
  25. 25.0.92 × 1.1 =
  26. 26.4.5 × 1.3 =
  27. 27.4.4 × 3.5 =
  28. 28.0.24 × 1.1 =
  29. 29.0.21 × 2.8 =
  30. 30.0.94 × 0.5 =
  31. 31.6.8 × 0.32 =
  32. 32.2.9 × 0.13 =
  33. 33.8.9 × 0.04 =
  34. 34.0.24 × 2.4 =
  35. 35.0.91 × 0.8 =
  36. 36.8.4 × 0.03 =
  37. 37.1.4 × 3.9 =
  38. 38.5.9 × 2.5 =
  39. 39.0.11 × 3.5 =
  40. 40.9.3 × 0.04 =

Answer key

  1. 0.36
  2. 0.456
  3. 1.617
  4. 1.369
  5. 0.396
  6. 10.08
  7. 2.136
  8. 1.96
  9. 8.58
  10. 1.596
  11. 1.944
  12. 0.546
  13. 0.408
  14. 1.215
  15. 29.12
  16. 0.098
  17. 0.324
  18. 1.829
  19. 3.104
  20. 0.69
  21. 1.008
  22. 0.495
  23. 0.122
  24. 0.186
  25. 1.012
  26. 5.85
  27. 15.4
  28. 0.264
  29. 0.588
  30. 0.47
  31. 2.176
  32. 0.377
  33. 0.356
  34. 0.576
  35. 0.728
  36. 0.252
  37. 5.46
  38. 14.75
  39. 0.385
  40. 0.372

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