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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 447 · 40 sums
TalentJR

The trick (Dwandwa Yoga): For abc: columns D(a) | D(ab) | D(abc) | D(bc) | D(c). D(a) = a², D(ab) = 2ab, D(abc) = 2ac + b², D(abcd) = 2ad + 2bc. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.8484² =
  2. 2.1598² =
  3. 3.131² =
  4. 4.3001² =
  5. 5.919² =
  6. 6.942² =
  7. 7.258² =
  8. 8.534² =
  9. 9.5276² =
  10. 10.432² =
  11. 11.5571² =
  12. 12.2625² =
  13. 13.207² =
  14. 14.8719² =
  15. 15.600² =
  16. 16.120² =
  17. 17.559² =
  18. 18.279² =
  19. 19.1801² =
  20. 20.6768² =
  21. 21.331² =
  22. 22.3799² =
  23. 23.937² =
  24. 24.130² =
  25. 25.389² =
  26. 26.239² =
  27. 27.870² =
  28. 28.707² =
  29. 29.4404² =
  30. 30.508² =
  31. 31.5906² =
  32. 32.247² =
  33. 33.816² =
  34. 34.360² =
  35. 35.638² =
  36. 36.173² =
  37. 37.766² =
  38. 38.785² =
  39. 39.2580² =
  40. 40.937² =

Answer key

  1. 71978256
  2. 2553604
  3. 17161
  4. 9006001
  5. 844561
  6. 887364
  7. 66564
  8. 285156
  9. 27836176
  10. 186624
  11. 31036041
  12. 6890625
  13. 42849
  14. 76020961
  15. 360000
  16. 14400
  17. 312481
  18. 77841
  19. 3243601
  20. 45805824
  21. 109561
  22. 14432401
  23. 877969
  24. 16900
  25. 151321
  26. 57121
  27. 756900
  28. 499849
  29. 19395216
  30. 258064
  31. 34880836
  32. 61009
  33. 665856
  34. 129600
  35. 407044
  36. 29929
  37. 586756
  38. 616225
  39. 6656400
  40. 877969

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