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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 929 · 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. 1.0.38 × 1.1 =
  2. 2.2.4 × 0.05 =
  3. 3.0.62 × 1.1 =
  4. 4.4.4 × 2.9 =
  5. 5.0.19 × 0.9 =
  6. 6.3.7 × 0.21 =
  7. 7.0.97 × 0.5 =
  8. 8.6.1 × 0.9 =
  9. 9.0.42 × 2.9 =
  10. 10.2.9 × 2.5 =
  11. 11.0.09 × 0.3 =
  12. 12.0.88 × 0.2 =
  13. 13.2.1 × 3.9 =
  14. 14.0.04 × 1.1 =
  15. 15.8.5 × 0.6 =
  16. 16.8.4 × 3.7 =
  17. 17.9.5 × 0.16 =
  18. 18.0.5 × 0.33 =
  19. 19.0.31 × 0.6 =
  20. 20.1.8 × 1.6 =
  21. 21.0.05 × 0.3 =
  22. 22.0.48 × 3.8 =
  23. 23.5.7 × 2.3 =
  24. 24.4.7 × 0.31 =
  25. 25.1.4 × 3.7 =
  26. 26.3.1 × 1.1 =
  27. 27.6.1 × 0.23 =
  28. 28.0.03 × 0.7 =
  29. 29.6.9 × 1.2 =
  30. 30.0.27 × 2.6 =
  31. 31.5.5 × 1.1 =
  32. 32.7.4 × 1.3 =
  33. 33.0.57 × 0.8 =
  34. 34.5.5 × 0.24 =
  35. 35.5.4 × 0.37 =
  36. 36.6.9 × 1.6 =
  37. 37.2.5 × 2.2 =
  38. 38.1.7 × 3.8 =
  39. 39.0.23 × 3.4 =
  40. 40.0.14 × 2.1 =

Answer key

  1. 0.418
  2. 0.12
  3. 0.682
  4. 12.76
  5. 0.171
  6. 0.777
  7. 0.485
  8. 5.49
  9. 1.218
  10. 7.25
  11. 0.027
  12. 0.176
  13. 8.19
  14. 0.044
  15. 5.1
  16. 31.08
  17. 1.52
  18. 0.165
  19. 0.186
  20. 2.88
  21. 0.015
  22. 1.824
  23. 13.11
  24. 1.457
  25. 5.18
  26. 3.41
  27. 1.403
  28. 0.021
  29. 8.28
  30. 0.702
  31. 6.05
  32. 9.62
  33. 0.456
  34. 1.32
  35. 1.998
  36. 11.04
  37. 5.5
  38. 6.46
  39. 0.782
  40. 0.294

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