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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 701 · 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. 1.298² =
  2. 2.825² =
  3. 3.513² =
  4. 4.2001² =
  5. 5.516² =
  6. 6.795² =
  7. 7.746² =
  8. 8.710² =
  9. 9.6521² =
  10. 10.8649² =
  11. 11.554² =
  12. 12.9878² =
  13. 13.312² =
  14. 14.833² =
  15. 15.9161² =
  16. 16.109² =
  17. 17.741² =
  18. 18.790² =
  19. 19.728² =
  20. 20.966² =
  21. 21.528² =
  22. 22.550² =
  23. 23.521² =
  24. 24.926² =
  25. 25.982² =
  26. 26.1970² =
  27. 27.398² =
  28. 28.850² =
  29. 29.795² =
  30. 30.968² =
  31. 31.838² =
  32. 32.151² =
  33. 33.828² =
  34. 34.9005² =
  35. 35.4064² =
  36. 36.867² =
  37. 37.700² =
  38. 38.173² =
  39. 39.3808² =
  40. 40.942² =

Answer key

  1. 88804
  2. 680625
  3. 263169
  4. 4004001
  5. 266256
  6. 632025
  7. 556516
  8. 504100
  9. 42523441
  10. 74805201
  11. 306916
  12. 97574884
  13. 97344
  14. 693889
  15. 83923921
  16. 11881
  17. 549081
  18. 624100
  19. 529984
  20. 933156
  21. 278784
  22. 302500
  23. 271441
  24. 857476
  25. 964324
  26. 3880900
  27. 158404
  28. 722500
  29. 632025
  30. 937024
  31. 702244
  32. 22801
  33. 685584
  34. 81090025
  35. 16516096
  36. 751689
  37. 490000
  38. 29929
  39. 14500864
  40. 887364

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