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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 841 · 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. 1.0.88 × 0.5 =
  2. 2.7.2 × 0.27 =
  3. 3.9.3 × 0.08 =
  4. 4.7.1 × 3.1 =
  5. 5.9.4 × 3.3 =
  6. 6.3.2 × 3.9 =
  7. 7.0.61 × 0.3 =
  8. 8.2.1 × 0.12 =
  9. 9.8.5 × 1.3 =
  10. 10.4.1 × 1.2 =
  11. 11.0.11 × 2.8 =
  12. 12.6.1 × 2.2 =
  13. 13.0.36 × 3.1 =
  14. 14.0.59 × 0.5 =
  15. 15.0.48 × 0.4 =
  16. 16.2.6 × 0.29 =
  17. 17.0.99 × 1.7 =
  18. 18.0.18 × 2.7 =
  19. 19.2.1 × 0.05 =
  20. 20.8.8 × 1.2 =
  21. 21.4.3 × 0.33 =
  22. 22.4.1 × 1.6 =
  23. 23.0.77 × 1.1 =
  24. 24.0.21 × 0.3 =
  25. 25.3.3 × 0.21 =
  26. 26.0.52 × 3.3 =
  27. 27.0.17 × 2.5 =
  28. 28.1.6 × 0.16 =
  29. 29.0.35 × 0.3 =
  30. 30.7.9 × 0.24 =
  31. 31.2.5 × 0.5 =
  32. 32.0.94 × 1.1 =
  33. 33.0.91 × 0.3 =
  34. 34.2.8 × 0.23 =
  35. 35.9.2 × 0.33 =
  36. 36.0.86 × 0.4 =
  37. 37.1.1 × 0.28 =
  38. 38.0.78 × 2.8 =
  39. 39.0.27 × 0.2 =
  40. 40.0.03 × 2.3 =

Answer key

  1. 0.44
  2. 1.944
  3. 0.744
  4. 22.01
  5. 31.02
  6. 12.48
  7. 0.183
  8. 0.252
  9. 11.05
  10. 4.92
  11. 0.308
  12. 13.42
  13. 1.116
  14. 0.295
  15. 0.192
  16. 0.754
  17. 1.683
  18. 0.486
  19. 0.105
  20. 10.56
  21. 1.419
  22. 6.56
  23. 0.847
  24. 0.063
  25. 0.693
  26. 1.716
  27. 0.425
  28. 0.256
  29. 0.105
  30. 1.896
  31. 1.25
  32. 1.034
  33. 0.273
  34. 0.644
  35. 3.036
  36. 0.344
  37. 0.308
  38. 2.184
  39. 0.054
  40. 0.069

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