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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 514 · 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. 1.0.6 × 0.7 =
  2. 2.8.5 × 1.2 =
  3. 3.1.4 × 2.7 =
  4. 4.0.13 × 0.8 =
  5. 5.4.1 × 0.3 =
  6. 6.3.1 × 0.16 =
  7. 7.0.41 × 1.1 =
  8. 8.5.7 × 3.1 =
  9. 9.4.7 × 2.8 =
  10. 10.0.31 × 2.1 =
  11. 11.2.4 × 0.12 =
  12. 12.3.6 × 0.22 =
  13. 13.4.7 × 1.1 =
  14. 14.0.32 × 3.1 =
  15. 15.3.7 × 2.7 =
  16. 16.6.1 × 1.9 =
  17. 17.0.6 × 0.08 =
  18. 18.0.26 × 2.4 =
  19. 19.0.11 × 3.9 =
  20. 20.0.89 × 3.1 =
  21. 21.5.1 × 0.8 =
  22. 22.2.6 × 3.9 =
  23. 23.0.76 × 0.6 =
  24. 24.6.8 × 0.19 =
  25. 25.0.15 × 3.4 =
  26. 26.0.2 × 0.05 =
  27. 27.8.3 × 3.1 =
  28. 28.0.71 × 3.7 =
  29. 29.8.8 × 0.5 =
  30. 30.0.38 × 2.6 =
  31. 31.1.9 × 0.2 =
  32. 32.4.5 × 0.37 =
  33. 33.7.5 × 2.5 =
  34. 34.7.2 × 2.1 =
  35. 35.0.06 × 0.7 =
  36. 36.0.74 × 2.7 =
  37. 37.0.62 × 2.3 =
  38. 38.0.31 × 1.4 =
  39. 39.0.31 × 0.6 =
  40. 40.0.2 × 3.5 =

Answer key

  1. 0.42
  2. 10.2
  3. 3.78
  4. 0.104
  5. 1.23
  6. 0.496
  7. 0.451
  8. 17.67
  9. 13.16
  10. 0.651
  11. 0.288
  12. 0.792
  13. 5.17
  14. 0.992
  15. 9.99
  16. 11.59
  17. 0.048
  18. 0.624
  19. 0.429
  20. 2.759
  21. 4.08
  22. 10.14
  23. 0.456
  24. 1.292
  25. 0.51
  26. 0.01
  27. 25.73
  28. 2.627
  29. 4.4
  30. 0.988
  31. 0.38
  32. 1.665
  33. 18.75
  34. 15.12
  35. 0.042
  36. 1.998
  37. 1.426
  38. 0.434
  39. 0.186
  40. 0.7

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