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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 262 · 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. 1.314² =
  2. 2.455² =
  3. 3.534² =
  4. 4.5774² =
  5. 5.754² =
  6. 6.421² =
  7. 7.925² =
  8. 8.756² =
  9. 9.1369² =
  10. 10.497² =
  11. 11.399² =
  12. 12.860² =
  13. 13.3678² =
  14. 14.569² =
  15. 15.7414² =
  16. 16.478² =
  17. 17.3564² =
  18. 18.870² =
  19. 19.147² =
  20. 20.616² =
  21. 21.967² =
  22. 22.354² =
  23. 23.249² =
  24. 24.245² =
  25. 25.838² =
  26. 26.505² =
  27. 27.290² =
  28. 28.5861² =
  29. 29.9127² =
  30. 30.673² =
  31. 31.447² =
  32. 32.315² =
  33. 33.264² =
  34. 34.298² =
  35. 35.4817² =
  36. 36.1601² =
  37. 37.654² =
  38. 38.961² =
  39. 39.470² =
  40. 40.877² =

Answer key

  1. 98596
  2. 207025
  3. 285156
  4. 33339076
  5. 568516
  6. 177241
  7. 855625
  8. 571536
  9. 1874161
  10. 247009
  11. 159201
  12. 739600
  13. 13527684
  14. 323761
  15. 54967396
  16. 228484
  17. 12702096
  18. 756900
  19. 21609
  20. 379456
  21. 935089
  22. 125316
  23. 62001
  24. 60025
  25. 702244
  26. 255025
  27. 84100
  28. 34351321
  29. 83302129
  30. 452929
  31. 199809
  32. 99225
  33. 69696
  34. 88804
  35. 23203489
  36. 2563201
  37. 427716
  38. 923521
  39. 220900
  40. 769129

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