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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 210 · 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. 1.0.21 × 0.6 =
  2. 2.0.38 × 3.5 =
  3. 3.0.02 × 2.5 =
  4. 4.9.9 × 2.8 =
  5. 5.2.3 × 0.36 =
  6. 6.0.07 × 0.6 =
  7. 7.0.69 × 3.8 =
  8. 8.8.5 × 0.24 =
  9. 9.0.84 × 0.8 =
  10. 10.1.6 × 0.35 =
  11. 11.0.64 × 3.8 =
  12. 12.7.3 × 3.2 =
  13. 13.4.2 × 1.7 =
  14. 14.0.71 × 0.4 =
  15. 15.2.6 × 3.9 =
  16. 16.6.4 × 3.1 =
  17. 17.0.76 × 1.9 =
  18. 18.0.41 × 0.6 =
  19. 19.3.8 × 0.22 =
  20. 20.0.38 × 1.6 =
  21. 21.3.1 × 0.18 =
  22. 22.0.97 × 1.8 =
  23. 23.4.1 × 0.37 =
  24. 24.8.1 × 0.34 =
  25. 25.0.04 × 3.3 =
  26. 26.9.6 × 0.19 =
  27. 27.0.11 × 2.5 =
  28. 28.9.5 × 0.6 =
  29. 29.0.21 × 1.5 =
  30. 30.3.4 × 3.1 =
  31. 31.6.3 × 1.3 =
  32. 32.5.8 × 0.19 =
  33. 33.2.4 × 3.9 =
  34. 34.0.62 × 3.6 =
  35. 35.2.1 × 3.9 =
  36. 36.0.02 × 0.7 =
  37. 37.9.5 × 3.8 =
  38. 38.0.78 × 3.2 =
  39. 39.7.4 × 0.23 =
  40. 40.8.3 × 0.8 =

Answer key

  1. 0.126
  2. 1.33
  3. 0.05
  4. 27.72
  5. 0.828
  6. 0.042
  7. 2.622
  8. 2.04
  9. 0.672
  10. 0.56
  11. 2.432
  12. 23.36
  13. 7.14
  14. 0.284
  15. 10.14
  16. 19.84
  17. 1.444
  18. 0.246
  19. 0.836
  20. 0.608
  21. 0.558
  22. 1.746
  23. 1.517
  24. 2.754
  25. 0.132
  26. 1.824
  27. 0.275
  28. 5.7
  29. 0.315
  30. 10.54
  31. 8.19
  32. 1.102
  33. 9.36
  34. 2.232
  35. 8.19
  36. 0.014
  37. 36.1
  38. 2.496
  39. 1.702
  40. 6.64

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