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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 376 · 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. 1.5367² =
  2. 2.306² =
  3. 3.5877² =
  4. 4.4383² =
  5. 5.325² =
  6. 6.5486² =
  7. 7.9010² =
  8. 8.895² =
  9. 9.752² =
  10. 10.812² =
  11. 11.636² =
  12. 12.242² =
  13. 13.443² =
  14. 14.629² =
  15. 15.1834² =
  16. 16.618² =
  17. 17.198² =
  18. 18.136² =
  19. 19.775² =
  20. 20.2956² =
  21. 21.1234² =
  22. 22.209² =
  23. 23.247² =
  24. 24.3877² =
  25. 25.8596² =
  26. 26.719² =
  27. 27.2984² =
  28. 28.338² =
  29. 29.4915² =
  30. 30.307² =
  31. 31.869² =
  32. 32.985² =
  33. 33.2153² =
  34. 34.573² =
  35. 35.1879² =
  36. 36.923² =
  37. 37.559² =
  38. 38.6354² =
  39. 39.1575² =
  40. 40.381² =

Answer key

  1. 28804689
  2. 93636
  3. 34539129
  4. 19210689
  5. 105625
  6. 30096196
  7. 81180100
  8. 801025
  9. 565504
  10. 659344
  11. 404496
  12. 58564
  13. 196249
  14. 395641
  15. 3363556
  16. 381924
  17. 39204
  18. 18496
  19. 600625
  20. 8737936
  21. 1522756
  22. 43681
  23. 61009
  24. 15031129
  25. 73891216
  26. 516961
  27. 8904256
  28. 114244
  29. 24157225
  30. 94249
  31. 755161
  32. 970225
  33. 4635409
  34. 328329
  35. 3530641
  36. 851929
  37. 312481
  38. 40373316
  39. 2480625
  40. 145161

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