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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 920 · 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. 1.9784² =
  2. 2.659² =
  3. 3.638² =
  4. 4.324² =
  5. 5.8730² =
  6. 6.406² =
  7. 7.7623² =
  8. 8.411² =
  9. 9.3047² =
  10. 10.612² =
  11. 11.8370² =
  12. 12.802² =
  13. 13.933² =
  14. 14.493² =
  15. 15.9606² =
  16. 16.7222² =
  17. 17.838² =
  18. 18.840² =
  19. 19.6649² =
  20. 20.724² =
  21. 21.4119² =
  22. 22.314² =
  23. 23.7833² =
  24. 24.673² =
  25. 25.632² =
  26. 26.940² =
  27. 27.572² =
  28. 28.7536² =
  29. 29.670² =
  30. 30.206² =
  31. 31.7479² =
  32. 32.8168² =
  33. 33.8725² =
  34. 34.1982² =
  35. 35.146² =
  36. 36.497² =
  37. 37.710² =
  38. 38.947² =
  39. 39.700² =
  40. 40.291² =

Answer key

  1. 95726656
  2. 434281
  3. 407044
  4. 104976
  5. 76212900
  6. 164836
  7. 58110129
  8. 168921
  9. 9284209
  10. 374544
  11. 70056900
  12. 643204
  13. 870489
  14. 243049
  15. 92275236
  16. 52157284
  17. 702244
  18. 705600
  19. 44209201
  20. 524176
  21. 16966161
  22. 98596
  23. 61355889
  24. 452929
  25. 399424
  26. 883600
  27. 327184
  28. 56791296
  29. 448900
  30. 42436
  31. 55935441
  32. 66716224
  33. 76125625
  34. 3928324
  35. 21316
  36. 247009
  37. 504100
  38. 896809
  39. 490000
  40. 84681

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