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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 53 · 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. 1.9393² =
  2. 2.8564² =
  3. 3.307² =
  4. 4.7092² =
  5. 5.472² =
  6. 6.915² =
  7. 7.186² =
  8. 8.347² =
  9. 9.286² =
  10. 10.172² =
  11. 11.509² =
  12. 12.727² =
  13. 13.5876² =
  14. 14.695² =
  15. 15.8724² =
  16. 16.5379² =
  17. 17.207² =
  18. 18.965² =
  19. 19.9981² =
  20. 20.1710² =
  21. 21.708² =
  22. 22.5017² =
  23. 23.834² =
  24. 24.243² =
  25. 25.366² =
  26. 26.1402² =
  27. 27.116² =
  28. 28.8460² =
  29. 29.748² =
  30. 30.5071² =
  31. 31.582² =
  32. 32.778² =
  33. 33.3557² =
  34. 34.930² =
  35. 35.269² =
  36. 36.6111² =
  37. 37.607² =
  38. 38.433² =
  39. 39.3640² =
  40. 40.286² =

Answer key

  1. 88228449
  2. 73342096
  3. 94249
  4. 50296464
  5. 222784
  6. 837225
  7. 34596
  8. 120409
  9. 81796
  10. 29584
  11. 259081
  12. 528529
  13. 34527376
  14. 483025
  15. 76108176
  16. 28933641
  17. 42849
  18. 931225
  19. 99620361
  20. 2924100
  21. 501264
  22. 25170289
  23. 695556
  24. 59049
  25. 133956
  26. 1965604
  27. 13456
  28. 71571600
  29. 559504
  30. 25715041
  31. 338724
  32. 605284
  33. 12652249
  34. 864900
  35. 72361
  36. 37344321
  37. 368449
  38. 187489
  39. 13249600
  40. 81796

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