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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 628 · 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. 1.0.84 × 3.7 =
  2. 2.1.8 × 0.2 =
  3. 3.0.68 × 0.7 =
  4. 4.3.4 × 3.2 =
  5. 5.0.58 × 1.7 =
  6. 6.3.6 × 0.05 =
  7. 7.0.84 × 0.8 =
  8. 8.0.04 × 2.5 =
  9. 9.0.62 × 0.4 =
  10. 10.0.41 × 3.8 =
  11. 11.7.2 × 3.3 =
  12. 12.0.81 × 1.3 =
  13. 13.6.1 × 0.34 =
  14. 14.0.02 × 2.2 =
  15. 15.2.4 × 2.3 =
  16. 16.0.03 × 0.4 =
  17. 17.0.82 × 3.2 =
  18. 18.0.79 × 1.9 =
  19. 19.2.5 × 2.9 =
  20. 20.0.51 × 1.5 =
  21. 21.2.2 × 0.24 =
  22. 22.2.8 × 1.3 =
  23. 23.6.3 × 1.8 =
  24. 24.0.5 × 0.22 =
  25. 25.4.3 × 0.31 =
  26. 26.7.8 × 0.4 =
  27. 27.2.6 × 0.17 =
  28. 28.4.1 × 0.17 =
  29. 29.0.11 × 0.4 =
  30. 30.3.7 × 2.7 =
  31. 31.4.2 × 0.9 =
  32. 32.5.5 × 2.1 =
  33. 33.0.52 × 0.2 =
  34. 34.0.2 × 0.33 =
  35. 35.0.11 × 1.5 =
  36. 36.2.6 × 1.6 =
  37. 37.6.1 × 1.1 =
  38. 38.2.2 × 0.09 =
  39. 39.2.6 × 0.31 =
  40. 40.0.51 × 3.7 =

Answer key

  1. 3.108
  2. 0.36
  3. 0.476
  4. 10.88
  5. 0.986
  6. 0.18
  7. 0.672
  8. 0.1
  9. 0.248
  10. 1.558
  11. 23.76
  12. 1.053
  13. 2.074
  14. 0.044
  15. 5.52
  16. 0.012
  17. 2.624
  18. 1.501
  19. 7.25
  20. 0.765
  21. 0.528
  22. 3.64
  23. 11.34
  24. 0.11
  25. 1.333
  26. 3.12
  27. 0.442
  28. 0.697
  29. 0.044
  30. 9.99
  31. 3.78
  32. 11.55
  33. 0.104
  34. 0.066
  35. 0.165
  36. 4.16
  37. 6.71
  38. 0.198
  39. 0.806
  40. 1.887

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