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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 166 · 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. 1.1.7 × 3.2 =
  2. 2.0.42 × 1.2 =
  3. 3.5.2 × 0.2 =
  4. 4.0.64 × 3.5 =
  5. 5.0.85 × 0.8 =
  6. 6.5.8 × 0.35 =
  7. 7.5.1 × 0.08 =
  8. 8.0.31 × 1.1 =
  9. 9.0.58 × 1.5 =
  10. 10.7.7 × 0.14 =
  11. 11.0.31 × 0.2 =
  12. 12.7.1 × 2.1 =
  13. 13.4.7 × 2.1 =
  14. 14.5.4 × 1.5 =
  15. 15.1.7 × 0.12 =
  16. 16.0.76 × 1.3 =
  17. 17.1.3 × 0.28 =
  18. 18.3.7 × 0.06 =
  19. 19.0.44 × 3.7 =
  20. 20.7.4 × 1.1 =
  21. 21.2.5 × 3.8 =
  22. 22.1.9 × 3.2 =
  23. 23.0.11 × 1.1 =
  24. 24.1.9 × 0.04 =
  25. 25.0.6 × 2.1 =
  26. 26.3.4 × 0.31 =
  27. 27.2.2 × 0.24 =
  28. 28.0.24 × 2.4 =
  29. 29.0.9 × 0.11 =
  30. 30.7.8 × 0.2 =
  31. 31.0.84 × 2.4 =
  32. 32.6.9 × 1.5 =
  33. 33.3.3 × 0.6 =
  34. 34.0.41 × 1.5 =
  35. 35.0.61 × 1.6 =
  36. 36.2.7 × 3.1 =
  37. 37.0.51 × 3.1 =
  38. 38.0.59 × 3.9 =
  39. 39.2.3 × 0.5 =
  40. 40.1.7 × 0.08 =

Answer key

  1. 5.44
  2. 0.504
  3. 1.04
  4. 2.24
  5. 0.68
  6. 2.03
  7. 0.408
  8. 0.341
  9. 0.87
  10. 1.078
  11. 0.062
  12. 14.91
  13. 9.87
  14. 8.1
  15. 0.204
  16. 0.988
  17. 0.364
  18. 0.222
  19. 1.628
  20. 8.14
  21. 9.5
  22. 6.08
  23. 0.121
  24. 0.076
  25. 1.26
  26. 1.054
  27. 0.528
  28. 0.576
  29. 0.099
  30. 1.56
  31. 2.016
  32. 10.35
  33. 1.98
  34. 0.615
  35. 0.976
  36. 8.37
  37. 1.581
  38. 2.301
  39. 1.15
  40. 0.136

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