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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 668 · 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. 1.0.64 × 0.6 =
  2. 2.0.32 × 3.1 =
  3. 3.2.2 × 2.6 =
  4. 4.5.5 × 0.9 =
  5. 5.4.1 × 0.28 =
  6. 6.0.25 × 1.2 =
  7. 7.1.4 × 0.04 =
  8. 8.0.15 × 3.8 =
  9. 9.0.24 × 3.2 =
  10. 10.9.6 × 0.28 =
  11. 11.5.2 × 3.2 =
  12. 12.1.3 × 2.5 =
  13. 13.4.1 × 1.6 =
  14. 14.0.47 × 3.1 =
  15. 15.0.17 × 0.9 =
  16. 16.0.11 × 0.5 =
  17. 17.5.5 × 0.18 =
  18. 18.6.1 × 1.1 =
  19. 19.4.5 × 0.22 =
  20. 20.8.7 × 2.1 =
  21. 21.9.8 × 1.5 =
  22. 22.6.5 × 0.11 =
  23. 23.5.8 × 2.8 =
  24. 24.4.3 × 0.07 =
  25. 25.8.5 × 0.35 =
  26. 26.0.11 × 1.8 =
  27. 27.7.3 × 0.9 =
  28. 28.5.6 × 1.1 =
  29. 29.0.7 × 0.02 =
  30. 30.0.34 × 3.5 =
  31. 31.3.5 × 0.38 =
  32. 32.0.56 × 3.8 =
  33. 33.3.8 × 0.6 =
  34. 34.6.8 × 0.11 =
  35. 35.5.1 × 1.3 =
  36. 36.8.4 × 3.3 =
  37. 37.0.47 × 3.6 =
  38. 38.0.22 × 0.9 =
  39. 39.6.2 × 0.21 =
  40. 40.1.8 × 3.7 =

Answer key

  1. 0.384
  2. 0.992
  3. 5.72
  4. 4.95
  5. 1.148
  6. 0.3
  7. 0.056
  8. 0.57
  9. 0.768
  10. 2.688
  11. 16.64
  12. 3.25
  13. 6.56
  14. 1.457
  15. 0.153
  16. 0.055
  17. 0.99
  18. 6.71
  19. 0.99
  20. 18.27
  21. 14.7
  22. 0.715
  23. 16.24
  24. 0.301
  25. 2.975
  26. 0.198
  27. 6.57
  28. 6.16
  29. 0.014
  30. 1.19
  31. 1.33
  32. 2.128
  33. 2.28
  34. 0.748
  35. 6.63
  36. 27.72
  37. 1.692
  38. 0.198
  39. 1.302
  40. 6.66

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