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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 142 · 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. 1.6.1 × 2.7 =
  2. 2.8.4 × 1.9 =
  3. 3.0.43 × 0.2 =
  4. 4.0.49 × 0.2 =
  5. 5.0.82 × 2.5 =
  6. 6.0.77 × 3.7 =
  7. 7.0.65 × 0.9 =
  8. 8.0.57 × 0.2 =
  9. 9.6.9 × 2.2 =
  10. 10.0.02 × 2.1 =
  11. 11.3.4 × 2.6 =
  12. 12.0.25 × 3.5 =
  13. 13.0.72 × 3.6 =
  14. 14.0.31 × 2.9 =
  15. 15.4.4 × 1.4 =
  16. 16.0.6 × 2.9 =
  17. 17.2.1 × 1.8 =
  18. 18.2.7 × 0.11 =
  19. 19.7.1 × 0.17 =
  20. 20.8.4 × 0.34 =
  21. 21.7.6 × 3.1 =
  22. 22.8.3 × 0.03 =
  23. 23.0.19 × 0.7 =
  24. 24.0.72 × 1.4 =
  25. 25.0.18 × 3.5 =
  26. 26.4.4 × 0.26 =
  27. 27.0.68 × 2.5 =
  28. 28.6.9 × 0.27 =
  29. 29.0.65 × 3.5 =
  30. 30.9.2 × 2.2 =
  31. 31.3.9 × 0.6 =
  32. 32.0.49 × 0.7 =
  33. 33.9.2 × 3.6 =
  34. 34.4.6 × 0.21 =
  35. 35.9.8 × 0.13 =
  36. 36.2.7 × 2.6 =
  37. 37.0.41 × 0.3 =
  38. 38.1.4 × 1.7 =
  39. 39.2.1 × 0.24 =
  40. 40.0.12 × 2.6 =

Answer key

  1. 16.47
  2. 15.96
  3. 0.086
  4. 0.098
  5. 2.05
  6. 2.849
  7. 0.585
  8. 0.114
  9. 15.18
  10. 0.042
  11. 8.84
  12. 0.875
  13. 2.592
  14. 0.899
  15. 6.16
  16. 1.74
  17. 3.78
  18. 0.297
  19. 1.207
  20. 2.856
  21. 23.56
  22. 0.249
  23. 0.133
  24. 1.008
  25. 0.63
  26. 1.144
  27. 1.7
  28. 1.863
  29. 2.275
  30. 20.24
  31. 2.34
  32. 0.343
  33. 33.12
  34. 0.966
  35. 1.274
  36. 7.02
  37. 0.123
  38. 2.38
  39. 0.504
  40. 0.312

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