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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 564 · 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. 1.935² =
  2. 2.225² =
  3. 3.333² =
  4. 4.6520² =
  5. 5.2102² =
  6. 6.757² =
  7. 7.982² =
  8. 8.2036² =
  9. 9.4442² =
  10. 10.140² =
  11. 11.382² =
  12. 12.9206² =
  13. 13.509² =
  14. 14.472² =
  15. 15.227² =
  16. 16.5553² =
  17. 17.840² =
  18. 18.457² =
  19. 19.8414² =
  20. 20.779² =
  21. 21.4293² =
  22. 22.576² =
  23. 23.428² =
  24. 24.146² =
  25. 25.595² =
  26. 26.168² =
  27. 27.8061² =
  28. 28.749² =
  29. 29.979² =
  30. 30.7316² =
  31. 31.464² =
  32. 32.419² =
  33. 33.824² =
  34. 34.756² =
  35. 35.2235² =
  36. 36.742² =
  37. 37.548² =
  38. 38.716² =
  39. 39.917² =
  40. 40.6886² =

Answer key

  1. 874225
  2. 50625
  3. 110889
  4. 42510400
  5. 4418404
  6. 573049
  7. 964324
  8. 4145296
  9. 19731364
  10. 19600
  11. 145924
  12. 84750436
  13. 259081
  14. 222784
  15. 51529
  16. 30835809
  17. 705600
  18. 208849
  19. 70795396
  20. 606841
  21. 18429849
  22. 331776
  23. 183184
  24. 21316
  25. 354025
  26. 28224
  27. 64979721
  28. 561001
  29. 958441
  30. 53523856
  31. 215296
  32. 175561
  33. 678976
  34. 571536
  35. 4995225
  36. 550564
  37. 300304
  38. 512656
  39. 840889
  40. 47416996

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