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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 205 · 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. 1.9494² =
  2. 2.2914² =
  3. 3.212² =
  4. 4.944² =
  5. 5.417² =
  6. 6.7634² =
  7. 7.876² =
  8. 8.322² =
  9. 9.188² =
  10. 10.841² =
  11. 11.653² =
  12. 12.839² =
  13. 13.929² =
  14. 14.2170² =
  15. 15.844² =
  16. 16.748² =
  17. 17.5994² =
  18. 18.257² =
  19. 19.6117² =
  20. 20.9459² =
  21. 21.6120² =
  22. 22.8850² =
  23. 23.618² =
  24. 24.4532² =
  25. 25.9553² =
  26. 26.437² =
  27. 27.3005² =
  28. 28.799² =
  29. 29.4912² =
  30. 30.4294² =
  31. 31.1515² =
  32. 32.628² =
  33. 33.3129² =
  34. 34.398² =
  35. 35.470² =
  36. 36.733² =
  37. 37.773² =
  38. 38.3062² =
  39. 39.106² =
  40. 40.196² =

Answer key

  1. 90136036
  2. 8491396
  3. 44944
  4. 891136
  5. 173889
  6. 58277956
  7. 767376
  8. 103684
  9. 35344
  10. 707281
  11. 426409
  12. 703921
  13. 863041
  14. 4708900
  15. 712336
  16. 559504
  17. 35928036
  18. 66049
  19. 37417689
  20. 89472681
  21. 37454400
  22. 78322500
  23. 381924
  24. 20539024
  25. 91259809
  26. 190969
  27. 9030025
  28. 638401
  29. 24127744
  30. 18438436
  31. 2295225
  32. 394384
  33. 9790641
  34. 158404
  35. 220900
  36. 537289
  37. 597529
  38. 9375844
  39. 11236
  40. 38416

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