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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 198 · 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. 1.0.8 × 0.9 =
  2. 2.0.14 × 3.3 =
  3. 3.0.87 × 0.7 =
  4. 4.3.3 × 0.33 =
  5. 5.7.5 × 0.06 =
  6. 6.0.52 × 3.8 =
  7. 7.0.24 × 1.1 =
  8. 8.1.7 × 0.28 =
  9. 9.0.68 × 2.5 =
  10. 10.9.5 × 1.5 =
  11. 11.0.47 × 1.9 =
  12. 12.3.8 × 3.1 =
  13. 13.0.72 × 1.2 =
  14. 14.0.92 × 2.8 =
  15. 15.0.91 × 3.9 =
  16. 16.8.2 × 2.7 =
  17. 17.0.48 × 0.7 =
  18. 18.1.6 × 3.1 =
  19. 19.0.48 × 1.1 =
  20. 20.0.48 × 3.1 =
  21. 21.1.1 × 0.2 =
  22. 22.0.36 × 3.4 =
  23. 23.8.5 × 0.9 =
  24. 24.5.5 × 0.02 =
  25. 25.6.9 × 0.34 =
  26. 26.0.52 × 1.9 =
  27. 27.0.51 × 3.2 =
  28. 28.8.8 × 0.34 =
  29. 29.0.21 × 2.5 =
  30. 30.4.1 × 0.02 =
  31. 31.0.86 × 3.1 =
  32. 32.4.7 × 0.4 =
  33. 33.4.3 × 0.26 =
  34. 34.2.4 × 0.06 =
  35. 35.6.7 × 3.2 =
  36. 36.3.6 × 0.25 =
  37. 37.0.85 × 3.3 =
  38. 38.0.91 × 2.9 =
  39. 39.0.42 × 0.2 =
  40. 40.7.1 × 2.2 =

Answer key

  1. 0.72
  2. 0.462
  3. 0.609
  4. 1.089
  5. 0.45
  6. 1.976
  7. 0.264
  8. 0.476
  9. 1.7
  10. 14.25
  11. 0.893
  12. 11.78
  13. 0.864
  14. 2.576
  15. 3.549
  16. 22.14
  17. 0.336
  18. 4.96
  19. 0.528
  20. 1.488
  21. 0.22
  22. 1.224
  23. 7.65
  24. 0.11
  25. 2.346
  26. 0.988
  27. 1.632
  28. 2.992
  29. 0.525
  30. 0.082
  31. 2.666
  32. 1.88
  33. 1.118
  34. 0.144
  35. 21.44
  36. 0.9
  37. 2.805
  38. 2.639
  39. 0.084
  40. 15.62

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