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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 734 · 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. 1.493² =
  2. 2.7584² =
  3. 3.952² =
  4. 4.273² =
  5. 5.835² =
  6. 6.6542² =
  7. 7.571² =
  8. 8.8144² =
  9. 9.2547² =
  10. 10.1912² =
  11. 11.8305² =
  12. 12.2451² =
  13. 13.503² =
  14. 14.101² =
  15. 15.4735² =
  16. 16.4386² =
  17. 17.150² =
  18. 18.726² =
  19. 19.507² =
  20. 20.913² =
  21. 21.4075² =
  22. 22.858² =
  23. 23.880² =
  24. 24.9764² =
  25. 25.3618² =
  26. 26.8372² =
  27. 27.810² =
  28. 28.812² =
  29. 29.6270² =
  30. 30.898² =
  31. 31.749² =
  32. 32.913² =
  33. 33.336² =
  34. 34.5361² =
  35. 35.4740² =
  36. 36.941² =
  37. 37.7682² =
  38. 38.267² =
  39. 39.5144² =
  40. 40.894² =

Answer key

  1. 243049
  2. 57517056
  3. 906304
  4. 74529
  5. 697225
  6. 42797764
  7. 326041
  8. 66324736
  9. 6487209
  10. 3655744
  11. 68973025
  12. 6007401
  13. 253009
  14. 10201
  15. 22420225
  16. 19236996
  17. 22500
  18. 527076
  19. 257049
  20. 833569
  21. 16605625
  22. 736164
  23. 774400
  24. 95335696
  25. 13089924
  26. 70090384
  27. 656100
  28. 659344
  29. 39312900
  30. 806404
  31. 561001
  32. 833569
  33. 112896
  34. 28740321
  35. 22467600
  36. 885481
  37. 59013124
  38. 71289
  39. 26460736
  40. 799236

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