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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 254 · 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. 1.705² =
  2. 2.887² =
  3. 3.2613² =
  4. 4.160² =
  5. 5.893² =
  6. 6.894² =
  7. 7.362² =
  8. 8.5521² =
  9. 9.400² =
  10. 10.136² =
  11. 11.4032² =
  12. 12.2011² =
  13. 13.402² =
  14. 14.3476² =
  15. 15.231² =
  16. 16.277² =
  17. 17.729² =
  18. 18.852² =
  19. 19.7302² =
  20. 20.282² =
  21. 21.912² =
  22. 22.9622² =
  23. 23.739² =
  24. 24.751² =
  25. 25.789² =
  26. 26.902² =
  27. 27.298² =
  28. 28.5241² =
  29. 29.354² =
  30. 30.817² =
  31. 31.670² =
  32. 32.257² =
  33. 33.322² =
  34. 34.505² =
  35. 35.306² =
  36. 36.984² =
  37. 37.917² =
  38. 38.797² =
  39. 39.314² =
  40. 40.145² =

Answer key

  1. 497025
  2. 786769
  3. 6827769
  4. 25600
  5. 797449
  6. 799236
  7. 131044
  8. 30481441
  9. 160000
  10. 18496
  11. 16257024
  12. 4044121
  13. 161604
  14. 12082576
  15. 53361
  16. 76729
  17. 531441
  18. 725904
  19. 53319204
  20. 79524
  21. 831744
  22. 92582884
  23. 546121
  24. 564001
  25. 622521
  26. 813604
  27. 88804
  28. 27468081
  29. 125316
  30. 667489
  31. 448900
  32. 66049
  33. 103684
  34. 255025
  35. 93636
  36. 968256
  37. 840889
  38. 635209
  39. 98596
  40. 21025

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