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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 122 · 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. 1.0.44 × 0.4 =
  2. 2.8.6 × 0.26 =
  3. 3.0.77 × 3.5 =
  4. 4.9.1 × 1.6 =
  5. 5.0.81 × 2.4 =
  6. 6.0.14 × 1.1 =
  7. 7.0.03 × 3.2 =
  8. 8.0.92 × 1.1 =
  9. 9.4.5 × 3.7 =
  10. 10.2.6 × 1.5 =
  11. 11.0.19 × 3.1 =
  12. 12.3.4 × 1.5 =
  13. 13.0.16 × 3.2 =
  14. 14.6.4 × 0.05 =
  15. 15.0.84 × 0.8 =
  16. 16.8.8 × 0.33 =
  17. 17.0.54 × 3.4 =
  18. 18.0.11 × 0.8 =
  19. 19.3.7 × 3.1 =
  20. 20.0.64 × 3.2 =
  21. 21.3.1 × 1.1 =
  22. 22.8.8 × 0.32 =
  23. 23.3.8 × 3.9 =
  24. 24.0.96 × 1.5 =
  25. 25.4.8 × 0.3 =
  26. 26.4.4 × 2.9 =
  27. 27.5.7 × 0.7 =
  28. 28.2.6 × 0.6 =
  29. 29.3.9 × 1.1 =
  30. 30.0.21 × 1.5 =
  31. 31.1.5 × 0.29 =
  32. 32.0.15 × 1.2 =
  33. 33.8.4 × 3.8 =
  34. 34.2.1 × 1.2 =
  35. 35.0.8 × 0.29 =
  36. 36.0.65 × 0.4 =
  37. 37.0.13 × 0.9 =
  38. 38.8.7 × 0.03 =
  39. 39.0.95 × 1.2 =
  40. 40.0.27 × 0.9 =

Answer key

  1. 0.176
  2. 2.236
  3. 2.695
  4. 14.56
  5. 1.944
  6. 0.154
  7. 0.096
  8. 1.012
  9. 16.65
  10. 3.9
  11. 0.589
  12. 5.1
  13. 0.512
  14. 0.32
  15. 0.672
  16. 2.904
  17. 1.836
  18. 0.088
  19. 11.47
  20. 2.048
  21. 3.41
  22. 2.816
  23. 14.82
  24. 1.44
  25. 1.44
  26. 12.76
  27. 3.99
  28. 1.56
  29. 4.29
  30. 0.315
  31. 0.435
  32. 0.18
  33. 31.92
  34. 2.52
  35. 0.232
  36. 0.26
  37. 0.117
  38. 0.261
  39. 1.14
  40. 0.243

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