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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 35 · 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. 1.0.16 × 1.6 =
  2. 2.0.14 × 3.9 =
  3. 3.0.2 × 0.08 =
  4. 4.0.91 × 0.2 =
  5. 5.7.4 × 0.7 =
  6. 6.1.5 × 0.26 =
  7. 7.5.2 × 0.05 =
  8. 8.0.9 × 1.3 =
  9. 9.9.1 × 0.36 =
  10. 10.1.1 × 3.1 =
  11. 11.9.9 × 0.11 =
  12. 12.1.7 × 0.11 =
  13. 13.2.8 × 2.2 =
  14. 14.3.7 × 0.35 =
  15. 15.0.49 × 3.8 =
  16. 16.0.13 × 0.2 =
  17. 17.1.4 × 3.9 =
  18. 18.0.18 × 3.6 =
  19. 19.0.8 × 2.8 =
  20. 20.0.62 × 3.5 =
  21. 21.6.2 × 0.05 =
  22. 22.1.9 × 2.6 =
  23. 23.6.6 × 3.5 =
  24. 24.0.55 × 0.8 =
  25. 25.5.5 × 1.5 =
  26. 26.0.67 × 3.8 =
  27. 27.0.66 × 0.9 =
  28. 28.1.9 × 1.7 =
  29. 29.3.2 × 0.06 =
  30. 30.9.3 × 0.04 =
  31. 31.0.9 × 1.1 =
  32. 32.0.06 × 1.8 =
  33. 33.0.53 × 0.5 =
  34. 34.0.27 × 1.4 =
  35. 35.4.9 × 2.5 =
  36. 36.0.16 × 2.2 =
  37. 37.0.21 × 3.6 =
  38. 38.3.3 × 0.24 =
  39. 39.3.7 × 0.05 =
  40. 40.6.9 × 0.08 =

Answer key

  1. 0.256
  2. 0.546
  3. 0.016
  4. 0.182
  5. 5.18
  6. 0.39
  7. 0.26
  8. 1.17
  9. 3.276
  10. 3.41
  11. 1.089
  12. 0.187
  13. 6.16
  14. 1.295
  15. 1.862
  16. 0.026
  17. 5.46
  18. 0.648
  19. 2.24
  20. 2.17
  21. 0.31
  22. 4.94
  23. 23.1
  24. 0.44
  25. 8.25
  26. 2.546
  27. 0.594
  28. 3.23
  29. 0.192
  30. 0.372
  31. 0.99
  32. 0.108
  33. 0.265
  34. 0.378
  35. 12.25
  36. 0.352
  37. 0.756
  38. 0.792
  39. 0.185
  40. 0.552

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