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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 342 · 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. 1.1.6 × 0.38 =
  2. 2.1.8 × 0.24 =
  3. 3.8.7 × 0.5 =
  4. 4.0.52 × 3.4 =
  5. 5.6.4 × 0.05 =
  6. 6.0.87 × 2.3 =
  7. 7.0.33 × 3.8 =
  8. 8.2.5 × 0.23 =
  9. 9.2.3 × 1.8 =
  10. 10.6.3 × 2.9 =
  11. 11.6.2 × 0.6 =
  12. 12.5.9 × 3.9 =
  13. 13.3.2 × 2.2 =
  14. 14.0.46 × 2.3 =
  15. 15.0.83 × 3.2 =
  16. 16.0.41 × 0.8 =
  17. 17.5.6 × 1.9 =
  18. 18.9.7 × 0.34 =
  19. 19.0.43 × 2.1 =
  20. 20.0.53 × 3.1 =
  21. 21.0.31 × 0.6 =
  22. 22.0.91 × 2.6 =
  23. 23.3.1 × 1.8 =
  24. 24.5.5 × 1.6 =
  25. 25.0.75 × 2.2 =
  26. 26.1.1 × 0.24 =
  27. 27.4.2 × 0.06 =
  28. 28.7.5 × 0.31 =
  29. 29.4.3 × 0.28 =
  30. 30.1.9 × 0.5 =
  31. 31.2.4 × 0.06 =
  32. 32.0.58 × 1.6 =
  33. 33.1.1 × 2.7 =
  34. 34.0.73 × 0.8 =
  35. 35.0.72 × 3.1 =
  36. 36.0.46 × 0.6 =
  37. 37.0.87 × 2.2 =
  38. 38.0.08 × 1.6 =
  39. 39.0.65 × 3.2 =
  40. 40.7.5 × 2.3 =

Answer key

  1. 0.608
  2. 0.432
  3. 4.35
  4. 1.768
  5. 0.32
  6. 2.001
  7. 1.254
  8. 0.575
  9. 4.14
  10. 18.27
  11. 3.72
  12. 23.01
  13. 7.04
  14. 1.058
  15. 2.656
  16. 0.328
  17. 10.64
  18. 3.298
  19. 0.903
  20. 1.643
  21. 0.186
  22. 2.366
  23. 5.58
  24. 8.8
  25. 1.65
  26. 0.264
  27. 0.252
  28. 2.325
  29. 1.204
  30. 0.95
  31. 0.144
  32. 0.928
  33. 2.97
  34. 0.584
  35. 2.232
  36. 0.276
  37. 1.914
  38. 0.128
  39. 2.08
  40. 17.25

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