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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 150 · 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. 1.229² =
  2. 2.8791² =
  3. 3.426² =
  4. 4.773² =
  5. 5.696² =
  6. 6.1460² =
  7. 7.747² =
  8. 8.109² =
  9. 9.753² =
  10. 10.949² =
  11. 11.979² =
  12. 12.309² =
  13. 13.1039² =
  14. 14.435² =
  15. 15.708² =
  16. 16.6332² =
  17. 17.550² =
  18. 18.2045² =
  19. 19.6695² =
  20. 20.2085² =
  21. 21.424² =
  22. 22.975² =
  23. 23.6080² =
  24. 24.2106² =
  25. 25.450² =
  26. 26.7063² =
  27. 27.219² =
  28. 28.835² =
  29. 29.148² =
  30. 30.280² =
  31. 31.6204² =
  32. 32.646² =
  33. 33.986² =
  34. 34.626² =
  35. 35.878² =
  36. 36.192² =
  37. 37.579² =
  38. 38.401² =
  39. 39.208² =
  40. 40.682² =

Answer key

  1. 52441
  2. 77281681
  3. 181476
  4. 597529
  5. 484416
  6. 2131600
  7. 558009
  8. 11881
  9. 567009
  10. 900601
  11. 958441
  12. 95481
  13. 1079521
  14. 189225
  15. 501264
  16. 40094224
  17. 302500
  18. 4182025
  19. 44823025
  20. 4347225
  21. 179776
  22. 950625
  23. 36966400
  24. 4435236
  25. 202500
  26. 49885969
  27. 47961
  28. 697225
  29. 21904
  30. 78400
  31. 38489616
  32. 417316
  33. 972196
  34. 391876
  35. 770884
  36. 36864
  37. 335241
  38. 160801
  39. 43264
  40. 465124

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