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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 468 · 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. 1.0.49 × 2.1 =
  2. 2.1.1 × 0.08 =
  3. 3.0.28 × 1.5 =
  4. 4.0.28 × 0.6 =
  5. 5.0.43 × 2.9 =
  6. 6.1.3 × 0.35 =
  7. 7.0.55 × 1.9 =
  8. 8.0.78 × 1.7 =
  9. 9.6.3 × 0.3 =
  10. 10.0.85 × 1.2 =
  11. 11.0.04 × 2.1 =
  12. 12.9.5 × 0.6 =
  13. 13.0.32 × 1.9 =
  14. 14.0.29 × 3.1 =
  15. 15.5.3 × 3.9 =
  16. 16.2.3 × 1.3 =
  17. 17.0.65 × 2.2 =
  18. 18.2.3 × 1.4 =
  19. 19.1.7 × 3.7 =
  20. 20.0.38 × 3.8 =
  21. 21.9.2 × 0.13 =
  22. 22.7.8 × 3.3 =
  23. 23.0.45 × 1.5 =
  24. 24.1.1 × 0.37 =
  25. 25.0.32 × 1.4 =
  26. 26.0.89 × 1.5 =
  27. 27.1.1 × 0.14 =
  28. 28.0.9 × 0.9 =
  29. 29.1.3 × 0.25 =
  30. 30.0.8 × 0.11 =
  31. 31.2.1 × 3.5 =
  32. 32.6.1 × 0.23 =
  33. 33.6.8 × 0.9 =
  34. 34.1.3 × 0.07 =
  35. 35.0.57 × 2.1 =
  36. 36.2.2 × 0.11 =
  37. 37.0.53 × 3.2 =
  38. 38.8.5 × 0.12 =
  39. 39.0.21 × 1.8 =
  40. 40.0.95 × 1.4 =

Answer key

  1. 1.029
  2. 0.088
  3. 0.42
  4. 0.168
  5. 1.247
  6. 0.455
  7. 1.045
  8. 1.326
  9. 1.89
  10. 1.02
  11. 0.084
  12. 5.7
  13. 0.608
  14. 0.899
  15. 20.67
  16. 2.99
  17. 1.43
  18. 3.22
  19. 6.29
  20. 1.444
  21. 1.196
  22. 25.74
  23. 0.675
  24. 0.407
  25. 0.448
  26. 1.335
  27. 0.154
  28. 0.81
  29. 0.325
  30. 0.088
  31. 7.35
  32. 1.403
  33. 6.12
  34. 0.091
  35. 1.197
  36. 0.242
  37. 1.696
  38. 1.02
  39. 0.378
  40. 1.33

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