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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 33 · 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. 1.3.4 × 0.23 =
  2. 2.8.5 × 2.3 =
  3. 3.0.75 × 0.2 =
  4. 4.0.92 × 3.3 =
  5. 5.5.6 × 3.9 =
  6. 6.0.08 × 3.5 =
  7. 7.4.6 × 2.6 =
  8. 8.0.35 × 2.2 =
  9. 9.5.8 × 3.1 =
  10. 10.0.19 × 1.5 =
  11. 11.6.1 × 0.37 =
  12. 12.5.2 × 1.2 =
  13. 13.0.26 × 2.1 =
  14. 14.0.94 × 0.2 =
  15. 15.8.8 × 0.06 =
  16. 16.0.34 × 3.3 =
  17. 17.5.6 × 0.28 =
  18. 18.3.8 × 0.29 =
  19. 19.4.5 × 0.11 =
  20. 20.1.9 × 0.12 =
  21. 21.2.4 × 3.9 =
  22. 22.0.34 × 2.4 =
  23. 23.0.22 × 0.8 =
  24. 24.0.81 × 0.7 =
  25. 25.2.5 × 2.1 =
  26. 26.0.51 × 0.9 =
  27. 27.0.23 × 1.7 =
  28. 28.0.9 × 0.06 =
  29. 29.0.5 × 0.28 =
  30. 30.1.5 × 0.05 =
  31. 31.2.1 × 3.9 =
  32. 32.1.8 × 3.2 =
  33. 33.0.06 × 0.4 =
  34. 34.0.91 × 0.6 =
  35. 35.1.1 × 3.2 =
  36. 36.0.18 × 2.4 =
  37. 37.2.6 × 0.8 =
  38. 38.0.65 × 0.6 =
  39. 39.8.1 × 0.31 =
  40. 40.0.95 × 3.3 =

Answer key

  1. 0.782
  2. 19.55
  3. 0.15
  4. 3.036
  5. 21.84
  6. 0.28
  7. 11.96
  8. 0.77
  9. 17.98
  10. 0.285
  11. 2.257
  12. 6.24
  13. 0.546
  14. 0.188
  15. 0.528
  16. 1.122
  17. 1.568
  18. 1.102
  19. 0.495
  20. 0.228
  21. 9.36
  22. 0.816
  23. 0.176
  24. 0.567
  25. 5.25
  26. 0.459
  27. 0.391
  28. 0.054
  29. 0.14
  30. 0.075
  31. 8.19
  32. 5.76
  33. 0.024
  34. 0.546
  35. 3.52
  36. 0.432
  37. 2.08
  38. 0.39
  39. 2.511
  40. 3.135

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