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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 69 · 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. 1.1686² =
  2. 2.132² =
  3. 3.747² =
  4. 4.655² =
  5. 5.158² =
  6. 6.7292² =
  7. 7.8316² =
  8. 8.447² =
  9. 9.643² =
  10. 10.239² =
  11. 11.2770² =
  12. 12.8480² =
  13. 13.776² =
  14. 14.200² =
  15. 15.690² =
  16. 16.113² =
  17. 17.380² =
  18. 18.852² =
  19. 19.906² =
  20. 20.807² =
  21. 21.828² =
  22. 22.684² =
  23. 23.112² =
  24. 24.8972² =
  25. 25.688² =
  26. 26.2083² =
  27. 27.531² =
  28. 28.780² =
  29. 29.2990² =
  30. 30.9889² =
  31. 31.3465² =
  32. 32.860² =
  33. 33.759² =
  34. 34.763² =
  35. 35.2447² =
  36. 36.2041² =
  37. 37.6464² =
  38. 38.1339² =
  39. 39.2516² =
  40. 40.881² =

Answer key

  1. 2842596
  2. 17424
  3. 558009
  4. 429025
  5. 24964
  6. 53173264
  7. 69155856
  8. 199809
  9. 413449
  10. 57121
  11. 7672900
  12. 71910400
  13. 602176
  14. 40000
  15. 476100
  16. 12769
  17. 144400
  18. 725904
  19. 820836
  20. 651249
  21. 685584
  22. 467856
  23. 12544
  24. 80496784
  25. 473344
  26. 4338889
  27. 281961
  28. 608400
  29. 8940100
  30. 97792321
  31. 12006225
  32. 739600
  33. 576081
  34. 582169
  35. 5987809
  36. 4165681
  37. 41783296
  38. 1792921
  39. 6330256
  40. 776161

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