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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 283 · 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. 1.4.5 × 0.03 =
  2. 2.0.24 × 0.8 =
  3. 3.0.43 × 0.4 =
  4. 4.0.4 × 3.7 =
  5. 5.2.4 × 0.05 =
  6. 6.2.1 × 1.4 =
  7. 7.0.49 × 0.6 =
  8. 8.0.34 × 3.6 =
  9. 9.0.66 × 1.2 =
  10. 10.3.2 × 0.12 =
  11. 11.1.2 × 3.6 =
  12. 12.0.29 × 3.1 =
  13. 13.1.1 × 3.5 =
  14. 14.0.78 × 2.7 =
  15. 15.0.5 × 0.33 =
  16. 16.0.31 × 2.5 =
  17. 17.5.5 × 0.02 =
  18. 18.2.9 × 1.8 =
  19. 19.0.11 × 0.4 =
  20. 20.0.41 × 3.7 =
  21. 21.0.12 × 0.2 =
  22. 22.0.41 × 1.4 =
  23. 23.1.5 × 2.6 =
  24. 24.5.4 × 0.02 =
  25. 25.0.19 × 0.3 =
  26. 26.2.2 × 0.31 =
  27. 27.0.33 × 3.3 =
  28. 28.0.13 × 3.6 =
  29. 29.0.24 × 3.9 =
  30. 30.0.63 × 0.9 =
  31. 31.0.63 × 1.3 =
  32. 32.0.24 × 3.1 =
  33. 33.4.8 × 1.3 =
  34. 34.4.1 × 0.23 =
  35. 35.2.6 × 3.1 =
  36. 36.7.4 × 0.35 =
  37. 37.0.36 × 3.1 =
  38. 38.6.5 × 0.35 =
  39. 39.9.5 × 0.4 =
  40. 40.6.9 × 0.08 =

Answer key

  1. 0.135
  2. 0.192
  3. 0.172
  4. 1.48
  5. 0.12
  6. 2.94
  7. 0.294
  8. 1.224
  9. 0.792
  10. 0.384
  11. 4.32
  12. 0.899
  13. 3.85
  14. 2.106
  15. 0.165
  16. 0.775
  17. 0.11
  18. 5.22
  19. 0.044
  20. 1.517
  21. 0.024
  22. 0.574
  23. 3.9
  24. 0.108
  25. 0.057
  26. 0.682
  27. 1.089
  28. 0.468
  29. 0.936
  30. 0.567
  31. 0.819
  32. 0.744
  33. 6.24
  34. 0.943
  35. 8.06
  36. 2.59
  37. 1.116
  38. 2.275
  39. 3.8
  40. 0.552

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