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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 655 · 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. 1.0.19 × 0.8 =
  2. 2.9.3 × 3.1 =
  3. 3.5.6 × 2.1 =
  4. 4.6.4 × 0.21 =
  5. 5.2.4 × 0.15 =
  6. 6.1.4 × 3.7 =
  7. 7.0.19 × 1.1 =
  8. 8.0.28 × 1.9 =
  9. 9.4.5 × 0.25 =
  10. 10.0.96 × 1.7 =
  11. 11.0.4 × 0.2 =
  12. 12.0.06 × 3.2 =
  13. 13.8.6 × 3.6 =
  14. 14.1.7 × 0.32 =
  15. 15.0.58 × 2.4 =
  16. 16.0.24 × 2.1 =
  17. 17.0.37 × 2.1 =
  18. 18.0.22 × 2.1 =
  19. 19.0.65 × 3.2 =
  20. 20.0.52 × 1.2 =
  21. 21.6.5 × 1.1 =
  22. 22.5.1 × 2.7 =
  23. 23.3.2 × 3.3 =
  24. 24.2.5 × 0.15 =
  25. 25.6.9 × 0.7 =
  26. 26.0.24 × 0.2 =
  27. 27.8.9 × 0.17 =
  28. 28.0.63 × 0.2 =
  29. 29.0.32 × 1.9 =
  30. 30.2.8 × 0.37 =
  31. 31.3.5 × 0.2 =
  32. 32.0.28 × 3.6 =
  33. 33.3.5 × 1.1 =
  34. 34.2.8 × 0.14 =
  35. 35.8.2 × 3.5 =
  36. 36.1.2 × 3.7 =
  37. 37.4.9 × 1.1 =
  38. 38.0.36 × 2.1 =
  39. 39.0.94 × 3.1 =
  40. 40.9.9 × 0.06 =

Answer key

  1. 0.152
  2. 28.83
  3. 11.76
  4. 1.344
  5. 0.36
  6. 5.18
  7. 0.209
  8. 0.532
  9. 1.125
  10. 1.632
  11. 0.08
  12. 0.192
  13. 30.96
  14. 0.544
  15. 1.392
  16. 0.504
  17. 0.777
  18. 0.462
  19. 2.08
  20. 0.624
  21. 7.15
  22. 13.77
  23. 10.56
  24. 0.375
  25. 4.83
  26. 0.048
  27. 1.513
  28. 0.126
  29. 0.608
  30. 1.036
  31. 0.7
  32. 1.008
  33. 3.85
  34. 0.392
  35. 28.7
  36. 4.44
  37. 5.39
  38. 0.756
  39. 2.914
  40. 0.594

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