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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 346 · 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. 1.968² =
  2. 2.5129² =
  3. 3.7915² =
  4. 4.729² =
  5. 5.713² =
  6. 6.903² =
  7. 7.8539² =
  8. 8.177² =
  9. 9.9620² =
  10. 10.804² =
  11. 11.845² =
  12. 12.659² =
  13. 13.329² =
  14. 14.539² =
  15. 15.7807² =
  16. 16.4621² =
  17. 17.897² =
  18. 18.642² =
  19. 19.6033² =
  20. 20.671² =
  21. 21.951² =
  22. 22.201² =
  23. 23.328² =
  24. 24.940² =
  25. 25.965² =
  26. 26.5657² =
  27. 27.265² =
  28. 28.389² =
  29. 29.2480² =
  30. 30.365² =
  31. 31.898² =
  32. 32.563² =
  33. 33.439² =
  34. 34.2686² =
  35. 35.919² =
  36. 36.3368² =
  37. 37.270² =
  38. 38.704² =
  39. 39.857² =
  40. 40.972² =

Answer key

  1. 937024
  2. 26306641
  3. 62647225
  4. 531441
  5. 508369
  6. 815409
  7. 72914521
  8. 31329
  9. 92544400
  10. 646416
  11. 714025
  12. 434281
  13. 108241
  14. 290521
  15. 60949249
  16. 21353641
  17. 804609
  18. 412164
  19. 36397089
  20. 450241
  21. 904401
  22. 40401
  23. 107584
  24. 883600
  25. 931225
  26. 32001649
  27. 70225
  28. 151321
  29. 6150400
  30. 133225
  31. 806404
  32. 316969
  33. 192721
  34. 7214596
  35. 844561
  36. 11343424
  37. 72900
  38. 495616
  39. 734449
  40. 944784

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