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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 560 · 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. 1.754² =
  2. 2.3052² =
  3. 3.587² =
  4. 4.917² =
  5. 5.504² =
  6. 6.831² =
  7. 7.225² =
  8. 8.965² =
  9. 9.472² =
  10. 10.423² =
  11. 11.8274² =
  12. 12.4923² =
  13. 13.899² =
  14. 14.2801² =
  15. 15.8259² =
  16. 16.3461² =
  17. 17.496² =
  18. 18.399² =
  19. 19.369² =
  20. 20.1378² =
  21. 21.282² =
  22. 22.6898² =
  23. 23.331² =
  24. 24.342² =
  25. 25.2624² =
  26. 26.779² =
  27. 27.989² =
  28. 28.436² =
  29. 29.375² =
  30. 30.1727² =
  31. 31.551² =
  32. 32.888² =
  33. 33.3584² =
  34. 34.520² =
  35. 35.404² =
  36. 36.193² =
  37. 37.253² =
  38. 38.992² =
  39. 39.213² =
  40. 40.726² =

Answer key

  1. 568516
  2. 9314704
  3. 344569
  4. 840889
  5. 254016
  6. 690561
  7. 50625
  8. 931225
  9. 222784
  10. 178929
  11. 68459076
  12. 24235929
  13. 808201
  14. 7845601
  15. 68211081
  16. 11978521
  17. 246016
  18. 159201
  19. 136161
  20. 1898884
  21. 79524
  22. 47582404
  23. 109561
  24. 116964
  25. 6885376
  26. 606841
  27. 978121
  28. 190096
  29. 140625
  30. 2982529
  31. 303601
  32. 788544
  33. 12845056
  34. 270400
  35. 163216
  36. 37249
  37. 64009
  38. 984064
  39. 45369
  40. 527076

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