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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 446 · 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. 1.8.1 × 0.22 =
  2. 2.4.4 × 3.3 =
  3. 3.0.23 × 2.1 =
  4. 4.0.8 × 0.5 =
  5. 5.0.3 × 3.8 =
  6. 6.0.3 × 0.19 =
  7. 7.0.61 × 3.9 =
  8. 8.0.17 × 1.9 =
  9. 9.1.2 × 0.22 =
  10. 10.4.1 × 0.04 =
  11. 11.7.9 × 0.08 =
  12. 12.2.1 × 0.19 =
  13. 13.0.51 × 0.7 =
  14. 14.0.21 × 1.1 =
  15. 15.7.5 × 0.06 =
  16. 16.0.41 × 1.5 =
  17. 17.5.3 × 0.27 =
  18. 18.0.41 × 3.4 =
  19. 19.0.11 × 2.8 =
  20. 20.5.2 × 3.7 =
  21. 21.0.91 × 2.9 =
  22. 22.7.4 × 3.4 =
  23. 23.0.75 × 1.2 =
  24. 24.0.36 × 0.5 =
  25. 25.0.3 × 1.8 =
  26. 26.2.5 × 0.4 =
  27. 27.2.4 × 0.28 =
  28. 28.0.41 × 3.4 =
  29. 29.4.6 × 1.4 =
  30. 30.0.83 × 2.2 =
  31. 31.3.9 × 0.11 =
  32. 32.4.8 × 1.2 =
  33. 33.0.05 × 3.7 =
  34. 34.8.5 × 0.21 =
  35. 35.0.05 × 1.2 =
  36. 36.4.5 × 0.11 =
  37. 37.0.18 × 2.7 =
  38. 38.2.6 × 0.27 =
  39. 39.0.16 × 0.8 =
  40. 40.3.4 × 2.3 =

Answer key

  1. 1.782
  2. 14.52
  3. 0.483
  4. 0.4
  5. 1.14
  6. 0.057
  7. 2.379
  8. 0.323
  9. 0.264
  10. 0.164
  11. 0.632
  12. 0.399
  13. 0.357
  14. 0.231
  15. 0.45
  16. 0.615
  17. 1.431
  18. 1.394
  19. 0.308
  20. 19.24
  21. 2.639
  22. 25.16
  23. 0.9
  24. 0.18
  25. 0.54
  26. 1
  27. 0.672
  28. 1.394
  29. 6.44
  30. 1.826
  31. 0.429
  32. 5.76
  33. 0.185
  34. 1.785
  35. 0.06
  36. 0.495
  37. 0.486
  38. 0.702
  39. 0.128
  40. 7.82

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