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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 433 · 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. 1.2.9 × 0.12 =
  2. 2.0.17 × 3.1 =
  3. 3.6.7 × 3.4 =
  4. 4.0.51 × 1.6 =
  5. 5.0.85 × 3.1 =
  6. 6.5.9 × 0.31 =
  7. 7.3.1 × 2.5 =
  8. 8.7.7 × 0.6 =
  9. 9.0.45 × 0.6 =
  10. 10.6.1 × 3.5 =
  11. 11.0.78 × 3.8 =
  12. 12.0.21 × 3.3 =
  13. 13.0.17 × 2.3 =
  14. 14.0.14 × 1.1 =
  15. 15.0.61 × 0.5 =
  16. 16.0.67 × 0.5 =
  17. 17.0.56 × 1.7 =
  18. 18.0.08 × 2.9 =
  19. 19.0.63 × 2.3 =
  20. 20.1.1 × 0.2 =
  21. 21.9.4 × 2.8 =
  22. 22.8.1 × 0.3 =
  23. 23.0.81 × 2.2 =
  24. 24.4.8 × 0.29 =
  25. 25.0.41 × 1.7 =
  26. 26.0.9 × 3.3 =
  27. 27.7.1 × 3.3 =
  28. 28.0.2 × 0.2 =
  29. 29.4.4 × 2.1 =
  30. 30.0.73 × 3.9 =
  31. 31.5.1 × 1.2 =
  32. 32.8.4 × 0.38 =
  33. 33.0.79 × 0.5 =
  34. 34.4.6 × 3.9 =
  35. 35.0.96 × 1.3 =
  36. 36.4.8 × 0.5 =
  37. 37.2.3 × 2.2 =
  38. 38.9.2 × 1.9 =
  39. 39.2.6 × 2.8 =
  40. 40.5.5 × 3.7 =

Answer key

  1. 0.348
  2. 0.527
  3. 22.78
  4. 0.816
  5. 2.635
  6. 1.829
  7. 7.75
  8. 4.62
  9. 0.27
  10. 21.35
  11. 2.964
  12. 0.693
  13. 0.391
  14. 0.154
  15. 0.305
  16. 0.335
  17. 0.952
  18. 0.232
  19. 1.449
  20. 0.22
  21. 26.32
  22. 2.43
  23. 1.782
  24. 1.392
  25. 0.697
  26. 2.97
  27. 23.43
  28. 0.04
  29. 9.24
  30. 2.847
  31. 6.12
  32. 3.192
  33. 0.395
  34. 17.94
  35. 1.248
  36. 2.4
  37. 5.06
  38. 17.48
  39. 7.28
  40. 20.35

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