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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 273 · 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. 1.397² =
  2. 2.795² =
  3. 3.211² =
  4. 4.768² =
  5. 5.771² =
  6. 6.564² =
  7. 7.175² =
  8. 8.645² =
  9. 9.319² =
  10. 10.695² =
  11. 11.784² =
  12. 12.360² =
  13. 13.471² =
  14. 14.112² =
  15. 15.6683² =
  16. 16.931² =
  17. 17.3895² =
  18. 18.699² =
  19. 19.834² =
  20. 20.949² =
  21. 21.785² =
  22. 22.5936² =
  23. 23.273² =
  24. 24.898² =
  25. 25.994² =
  26. 26.383² =
  27. 27.836² =
  28. 28.718² =
  29. 29.194² =
  30. 30.543² =
  31. 31.415² =
  32. 32.2181² =
  33. 33.523² =
  34. 34.668² =
  35. 35.7193² =
  36. 36.6208² =
  37. 37.837² =
  38. 38.882² =
  39. 39.284² =
  40. 40.727² =

Answer key

  1. 157609
  2. 632025
  3. 44521
  4. 589824
  5. 594441
  6. 318096
  7. 30625
  8. 416025
  9. 101761
  10. 483025
  11. 614656
  12. 129600
  13. 221841
  14. 12544
  15. 44662489
  16. 866761
  17. 15171025
  18. 488601
  19. 695556
  20. 900601
  21. 616225
  22. 35236096
  23. 74529
  24. 806404
  25. 988036
  26. 146689
  27. 698896
  28. 515524
  29. 37636
  30. 294849
  31. 172225
  32. 4756761
  33. 273529
  34. 446224
  35. 51739249
  36. 38539264
  37. 700569
  38. 777924
  39. 80656
  40. 528529

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