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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 271 · 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. 1.536² =
  2. 2.9489² =
  3. 3.337² =
  4. 4.1299² =
  5. 5.366² =
  6. 6.5754² =
  7. 7.958² =
  8. 8.9308² =
  9. 9.562² =
  10. 10.865² =
  11. 11.3055² =
  12. 12.5724² =
  13. 13.539² =
  14. 14.198² =
  15. 15.8124² =
  16. 16.3026² =
  17. 17.256² =
  18. 18.3404² =
  19. 19.253² =
  20. 20.202² =
  21. 21.1280² =
  22. 22.7527² =
  23. 23.6594² =
  24. 24.5690² =
  25. 25.440² =
  26. 26.4065² =
  27. 27.4528² =
  28. 28.259² =
  29. 29.373² =
  30. 30.638² =
  31. 31.263² =
  32. 32.7704² =
  33. 33.1574² =
  34. 34.169² =
  35. 35.630² =
  36. 36.430² =
  37. 37.107² =
  38. 38.941² =
  39. 39.379² =
  40. 40.765² =

Answer key

  1. 287296
  2. 90041121
  3. 113569
  4. 1687401
  5. 133956
  6. 33108516
  7. 917764
  8. 86638864
  9. 315844
  10. 748225
  11. 9333025
  12. 32764176
  13. 290521
  14. 39204
  15. 65999376
  16. 9156676
  17. 65536
  18. 11587216
  19. 64009
  20. 40804
  21. 1638400
  22. 56655729
  23. 43480836
  24. 32376100
  25. 193600
  26. 16524225
  27. 20502784
  28. 67081
  29. 139129
  30. 407044
  31. 69169
  32. 59351616
  33. 2477476
  34. 28561
  35. 396900
  36. 184900
  37. 11449
  38. 885481
  39. 143641
  40. 585225

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