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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 480 · 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. 1.4.1 × 3.9 =
  2. 2.9.6 × 2.2 =
  3. 3.8.3 × 0.17 =
  4. 4.9.6 × 0.12 =
  5. 5.8.1 × 0.9 =
  6. 6.0.62 × 2.8 =
  7. 7.8.4 × 2.5 =
  8. 8.0.49 × 3.4 =
  9. 9.0.64 × 1.1 =
  10. 10.1.1 × 0.7 =
  11. 11.0.6 × 0.06 =
  12. 12.1.1 × 0.35 =
  13. 13.7.1 × 1.9 =
  14. 14.0.92 × 0.8 =
  15. 15.0.08 × 1.1 =
  16. 16.4.4 × 0.04 =
  17. 17.0.53 × 0.3 =
  18. 18.5.8 × 1.4 =
  19. 19.0.67 × 1.1 =
  20. 20.0.15 × 2.2 =
  21. 21.0.44 × 1.1 =
  22. 22.0.28 × 1.7 =
  23. 23.0.15 × 1.1 =
  24. 24.3.2 × 0.36 =
  25. 25.7.2 × 0.27 =
  26. 26.9.7 × 2.9 =
  27. 27.8.3 × 3.5 =
  28. 28.1.8 × 0.38 =
  29. 29.1.5 × 3.9 =
  30. 30.0.91 × 3.1 =
  31. 31.1.2 × 0.4 =
  32. 32.7.4 × 0.19 =
  33. 33.0.38 × 2.7 =
  34. 34.0.03 × 3.6 =
  35. 35.0.06 × 3.3 =
  36. 36.0.78 × 0.3 =
  37. 37.1.4 × 3.1 =
  38. 38.0.02 × 1.5 =
  39. 39.0.21 × 1.8 =
  40. 40.7.1 × 3.1 =

Answer key

  1. 15.99
  2. 21.12
  3. 1.411
  4. 1.152
  5. 7.29
  6. 1.736
  7. 21
  8. 1.666
  9. 0.704
  10. 0.77
  11. 0.036
  12. 0.385
  13. 13.49
  14. 0.736
  15. 0.088
  16. 0.176
  17. 0.159
  18. 8.12
  19. 0.737
  20. 0.33
  21. 0.484
  22. 0.476
  23. 0.165
  24. 1.152
  25. 1.944
  26. 28.13
  27. 29.05
  28. 0.684
  29. 5.85
  30. 2.821
  31. 0.48
  32. 1.406
  33. 1.026
  34. 0.108
  35. 0.198
  36. 0.234
  37. 4.34
  38. 0.03
  39. 0.378
  40. 22.01

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