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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 963 · 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. 1.942² =
  2. 2.5413² =
  3. 3.548² =
  4. 4.614² =
  5. 5.802² =
  6. 6.652² =
  7. 7.9436² =
  8. 8.644² =
  9. 9.465² =
  10. 10.787² =
  11. 11.121² =
  12. 12.190² =
  13. 13.824² =
  14. 14.1098² =
  15. 15.3800² =
  16. 16.314² =
  17. 17.8273² =
  18. 18.199² =
  19. 19.373² =
  20. 20.8782² =
  21. 21.704² =
  22. 22.320² =
  23. 23.3276² =
  24. 24.802² =
  25. 25.3106² =
  26. 26.6383² =
  27. 27.5223² =
  28. 28.1193² =
  29. 29.763² =
  30. 30.2399² =
  31. 31.498² =
  32. 32.505² =
  33. 33.183² =
  34. 34.182² =
  35. 35.307² =
  36. 36.109² =
  37. 37.657² =
  38. 38.194² =
  39. 39.279² =
  40. 40.8356² =

Answer key

  1. 887364
  2. 29300569
  3. 300304
  4. 376996
  5. 643204
  6. 425104
  7. 89038096
  8. 414736
  9. 216225
  10. 619369
  11. 14641
  12. 36100
  13. 678976
  14. 1205604
  15. 14440000
  16. 98596
  17. 68442529
  18. 39601
  19. 139129
  20. 77123524
  21. 495616
  22. 102400
  23. 10732176
  24. 643204
  25. 9647236
  26. 40742689
  27. 27279729
  28. 1423249
  29. 582169
  30. 5755201
  31. 248004
  32. 255025
  33. 33489
  34. 33124
  35. 94249
  36. 11881
  37. 431649
  38. 37636
  39. 77841
  40. 69822736

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