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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 483 · 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. 1.482² =
  2. 2.2857² =
  3. 3.180² =
  4. 4.398² =
  5. 5.990² =
  6. 6.109² =
  7. 7.315² =
  8. 8.842² =
  9. 9.6280² =
  10. 10.836² =
  11. 11.579² =
  12. 12.583² =
  13. 13.3068² =
  14. 14.586² =
  15. 15.369² =
  16. 16.120² =
  17. 17.423² =
  18. 18.914² =
  19. 19.612² =
  20. 20.483² =
  21. 21.9864² =
  22. 22.5532² =
  23. 23.788² =
  24. 24.113² =
  25. 25.927² =
  26. 26.251² =
  27. 27.2251² =
  28. 28.424² =
  29. 29.558² =
  30. 30.469² =
  31. 31.442² =
  32. 32.4793² =
  33. 33.7109² =
  34. 34.674² =
  35. 35.226² =
  36. 36.162² =
  37. 37.687² =
  38. 38.198² =
  39. 39.346² =
  40. 40.606² =

Answer key

  1. 232324
  2. 8162449
  3. 32400
  4. 158404
  5. 980100
  6. 11881
  7. 99225
  8. 708964
  9. 39438400
  10. 698896
  11. 335241
  12. 339889
  13. 9412624
  14. 343396
  15. 136161
  16. 14400
  17. 178929
  18. 835396
  19. 374544
  20. 233289
  21. 97298496
  22. 30603024
  23. 620944
  24. 12769
  25. 859329
  26. 63001
  27. 5067001
  28. 179776
  29. 311364
  30. 219961
  31. 195364
  32. 22972849
  33. 50537881
  34. 454276
  35. 51076
  36. 26244
  37. 471969
  38. 39204
  39. 119716
  40. 367236

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