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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 264 · 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. 1.758² =
  2. 2.418² =
  3. 3.651² =
  4. 4.269² =
  5. 5.151² =
  6. 6.2107² =
  7. 7.244² =
  8. 8.1863² =
  9. 9.769² =
  10. 10.1555² =
  11. 11.362² =
  12. 12.5266² =
  13. 13.123² =
  14. 14.602² =
  15. 15.450² =
  16. 16.359² =
  17. 17.125² =
  18. 18.2222² =
  19. 19.2320² =
  20. 20.2973² =
  21. 21.386² =
  22. 22.234² =
  23. 23.855² =
  24. 24.987² =
  25. 25.319² =
  26. 26.939² =
  27. 27.504² =
  28. 28.806² =
  29. 29.169² =
  30. 30.997² =
  31. 31.9190² =
  32. 32.288² =
  33. 33.479² =
  34. 34.253² =
  35. 35.620² =
  36. 36.1854² =
  37. 37.638² =
  38. 38.559² =
  39. 39.249² =
  40. 40.732² =

Answer key

  1. 574564
  2. 174724
  3. 423801
  4. 72361
  5. 22801
  6. 4439449
  7. 59536
  8. 3470769
  9. 591361
  10. 2418025
  11. 131044
  12. 27730756
  13. 15129
  14. 362404
  15. 202500
  16. 128881
  17. 15625
  18. 4937284
  19. 5382400
  20. 8838729
  21. 148996
  22. 54756
  23. 731025
  24. 974169
  25. 101761
  26. 881721
  27. 254016
  28. 649636
  29. 28561
  30. 994009
  31. 84456100
  32. 82944
  33. 229441
  34. 64009
  35. 384400
  36. 3437316
  37. 407044
  38. 312481
  39. 62001
  40. 535824

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