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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 925 · 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. 1.6.1 × 1.5 =
  2. 2.0.62 × 0.5 =
  3. 3.9.3 × 0.38 =
  4. 4.3.5 × 3.1 =
  5. 5.7.3 × 0.07 =
  6. 6.7.6 × 0.21 =
  7. 7.0.18 × 0.2 =
  8. 8.0.4 × 3.2 =
  9. 9.0.12 × 3.9 =
  10. 10.9.2 × 0.17 =
  11. 11.0.27 × 1.7 =
  12. 12.0.24 × 3.4 =
  13. 13.3.9 × 1.1 =
  14. 14.1.3 × 0.32 =
  15. 15.0.71 × 2.6 =
  16. 16.3.7 × 0.6 =
  17. 17.0.8 × 2.2 =
  18. 18.0.09 × 3.7 =
  19. 19.0.12 × 1.5 =
  20. 20.0.71 × 3.5 =
  21. 21.0.05 × 1.9 =
  22. 22.1.7 × 0.29 =
  23. 23.0.26 × 2.2 =
  24. 24.0.96 × 1.1 =
  25. 25.0.61 × 2.1 =
  26. 26.0.3 × 0.5 =
  27. 27.0.41 × 1.2 =
  28. 28.0.51 × 0.2 =
  29. 29.3.4 × 2.6 =
  30. 30.3.6 × 0.13 =
  31. 31.2.4 × 0.13 =
  32. 32.0.46 × 1.1 =
  33. 33.0.07 × 2.8 =
  34. 34.0.36 × 3.7 =
  35. 35.1.4 × 3.1 =
  36. 36.0.74 × 3.3 =
  37. 37.0.28 × 0.2 =
  38. 38.0.92 × 0.5 =
  39. 39.0.11 × 1.6 =
  40. 40.0.56 × 0.8 =

Answer key

  1. 9.15
  2. 0.31
  3. 3.534
  4. 10.85
  5. 0.511
  6. 1.596
  7. 0.036
  8. 1.28
  9. 0.468
  10. 1.564
  11. 0.459
  12. 0.816
  13. 4.29
  14. 0.416
  15. 1.846
  16. 2.22
  17. 1.76
  18. 0.333
  19. 0.18
  20. 2.485
  21. 0.095
  22. 0.493
  23. 0.572
  24. 1.056
  25. 1.281
  26. 0.15
  27. 0.492
  28. 0.102
  29. 8.84
  30. 0.468
  31. 0.312
  32. 0.506
  33. 0.196
  34. 1.332
  35. 4.34
  36. 2.442
  37. 0.056
  38. 0.46
  39. 0.176
  40. 0.448

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