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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 363 · 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. 1.8728² =
  2. 2.128² =
  3. 3.348² =
  4. 4.611² =
  5. 5.127² =
  6. 6.667² =
  7. 7.681² =
  8. 8.836² =
  9. 9.6220² =
  10. 10.8216² =
  11. 11.517² =
  12. 12.6709² =
  13. 13.7779² =
  14. 14.343² =
  15. 15.6137² =
  16. 16.958² =
  17. 17.386² =
  18. 18.497² =
  19. 19.221² =
  20. 20.429² =
  21. 21.1317² =
  22. 22.801² =
  23. 23.6687² =
  24. 24.948² =
  25. 25.133² =
  26. 26.286² =
  27. 27.7941² =
  28. 28.514² =
  29. 29.434² =
  30. 30.501² =
  31. 31.3766² =
  32. 32.793² =
  33. 33.6585² =
  34. 34.933² =
  35. 35.767² =
  36. 36.602² =
  37. 37.554² =
  38. 38.8079² =
  39. 39.5471² =
  40. 40.872² =

Answer key

  1. 76177984
  2. 16384
  3. 121104
  4. 373321
  5. 16129
  6. 444889
  7. 463761
  8. 698896
  9. 38688400
  10. 67502656
  11. 267289
  12. 45010681
  13. 60512841
  14. 117649
  15. 37662769
  16. 917764
  17. 148996
  18. 247009
  19. 48841
  20. 184041
  21. 1734489
  22. 641601
  23. 44715969
  24. 898704
  25. 17689
  26. 81796
  27. 63059481
  28. 264196
  29. 188356
  30. 251001
  31. 14182756
  32. 628849
  33. 43362225
  34. 870489
  35. 588289
  36. 362404
  37. 306916
  38. 65270241
  39. 29931841
  40. 760384

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