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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 657 · 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. 1.0.45 × 2.7 =
  2. 2.8.9 × 0.11 =
  3. 3.0.18 × 2.1 =
  4. 4.9.2 × 1.7 =
  5. 5.0.09 × 2.4 =
  6. 6.0.11 × 3.9 =
  7. 7.0.33 × 1.3 =
  8. 8.6.9 × 0.03 =
  9. 9.6.5 × 0.03 =
  10. 10.0.59 × 1.8 =
  11. 11.0.88 × 3.2 =
  12. 12.9.3 × 0.02 =
  13. 13.0.18 × 3.5 =
  14. 14.8.3 × 3.3 =
  15. 15.6.6 × 2.5 =
  16. 16.0.09 × 1.9 =
  17. 17.7.9 × 2.8 =
  18. 18.0.44 × 3.4 =
  19. 19.0.22 × 3.1 =
  20. 20.5.2 × 1.1 =
  21. 21.7.4 × 2.1 =
  22. 22.0.61 × 0.5 =
  23. 23.0.41 × 1.5 =
  24. 24.9.1 × 0.28 =
  25. 25.2.7 × 2.3 =
  26. 26.0.46 × 2.3 =
  27. 27.2.1 × 0.31 =
  28. 28.0.49 × 3.2 =
  29. 29.5.1 × 0.2 =
  30. 30.2.1 × 1.5 =
  31. 31.0.9 × 0.18 =
  32. 32.0.6 × 0.35 =
  33. 33.9.4 × 0.2 =
  34. 34.0.82 × 0.6 =
  35. 35.7.6 × 0.6 =
  36. 36.0.11 × 1.8 =
  37. 37.0.59 × 1.8 =
  38. 38.4.9 × 0.11 =
  39. 39.9.4 × 1.7 =
  40. 40.0.92 × 1.8 =

Answer key

  1. 1.215
  2. 0.979
  3. 0.378
  4. 15.64
  5. 0.216
  6. 0.429
  7. 0.429
  8. 0.207
  9. 0.195
  10. 1.062
  11. 2.816
  12. 0.186
  13. 0.63
  14. 27.39
  15. 16.5
  16. 0.171
  17. 22.12
  18. 1.496
  19. 0.682
  20. 5.72
  21. 15.54
  22. 0.305
  23. 0.615
  24. 2.548
  25. 6.21
  26. 1.058
  27. 0.651
  28. 1.568
  29. 1.02
  30. 3.15
  31. 0.162
  32. 0.21
  33. 1.88
  34. 0.492
  35. 4.56
  36. 0.198
  37. 1.062
  38. 0.539
  39. 15.98
  40. 1.656

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