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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 466 · 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. 1.251² =
  2. 2.248² =
  3. 3.669² =
  4. 4.8588² =
  5. 5.772² =
  6. 6.4642² =
  7. 7.730² =
  8. 8.418² =
  9. 9.730² =
  10. 10.3031² =
  11. 11.627² =
  12. 12.621² =
  13. 13.1579² =
  14. 14.174² =
  15. 15.792² =
  16. 16.306² =
  17. 17.261² =
  18. 18.4660² =
  19. 19.657² =
  20. 20.387² =
  21. 21.184² =
  22. 22.454² =
  23. 23.452² =
  24. 24.161² =
  25. 25.8502² =
  26. 26.995² =
  27. 27.833² =
  28. 28.693² =
  29. 29.697² =
  30. 30.551² =
  31. 31.885² =
  32. 32.931² =
  33. 33.536² =
  34. 34.569² =
  35. 35.474² =
  36. 36.189² =
  37. 37.748² =
  38. 38.852² =
  39. 39.130² =
  40. 40.407² =

Answer key

  1. 63001
  2. 61504
  3. 447561
  4. 73753744
  5. 595984
  6. 21548164
  7. 532900
  8. 174724
  9. 532900
  10. 9186961
  11. 393129
  12. 385641
  13. 2493241
  14. 30276
  15. 627264
  16. 93636
  17. 68121
  18. 21715600
  19. 431649
  20. 149769
  21. 33856
  22. 206116
  23. 204304
  24. 25921
  25. 72284004
  26. 990025
  27. 693889
  28. 480249
  29. 485809
  30. 303601
  31. 783225
  32. 866761
  33. 287296
  34. 323761
  35. 224676
  36. 35721
  37. 559504
  38. 725904
  39. 16900
  40. 165649

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