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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 138 · 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. 1.658² =
  2. 2.916² =
  3. 3.6760² =
  4. 4.8356² =
  5. 5.196² =
  6. 6.217² =
  7. 7.8279² =
  8. 8.930² =
  9. 9.633² =
  10. 10.326² =
  11. 11.3960² =
  12. 12.783² =
  13. 13.296² =
  14. 14.824² =
  15. 15.934² =
  16. 16.416² =
  17. 17.757² =
  18. 18.815² =
  19. 19.2153² =
  20. 20.311² =
  21. 21.546² =
  22. 22.877² =
  23. 23.978² =
  24. 24.956² =
  25. 25.6479² =
  26. 26.1065² =
  27. 27.857² =
  28. 28.8357² =
  29. 29.125² =
  30. 30.642² =
  31. 31.242² =
  32. 32.902² =
  33. 33.1453² =
  34. 34.8786² =
  35. 35.8023² =
  36. 36.728² =
  37. 37.644² =
  38. 38.8188² =
  39. 39.489² =
  40. 40.647² =

Answer key

  1. 432964
  2. 839056
  3. 45697600
  4. 69822736
  5. 38416
  6. 47089
  7. 68541841
  8. 864900
  9. 400689
  10. 106276
  11. 15681600
  12. 613089
  13. 87616
  14. 678976
  15. 872356
  16. 173056
  17. 573049
  18. 664225
  19. 4635409
  20. 96721
  21. 298116
  22. 769129
  23. 956484
  24. 913936
  25. 41977441
  26. 1134225
  27. 734449
  28. 69839449
  29. 15625
  30. 412164
  31. 58564
  32. 813604
  33. 2111209
  34. 77193796
  35. 64368529
  36. 529984
  37. 414736
  38. 67043344
  39. 239121
  40. 418609

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