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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 852 · 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. 1.371² =
  2. 2.242² =
  3. 3.5838² =
  4. 4.668² =
  5. 5.4044² =
  6. 6.851² =
  7. 7.468² =
  8. 8.8102² =
  9. 9.163² =
  10. 10.9971² =
  11. 11.198² =
  12. 12.7746² =
  13. 13.2203² =
  14. 14.8668² =
  15. 15.2530² =
  16. 16.616² =
  17. 17.2635² =
  18. 18.280² =
  19. 19.359² =
  20. 20.9008² =
  21. 21.111² =
  22. 22.858² =
  23. 23.472² =
  24. 24.5996² =
  25. 25.2219² =
  26. 26.546² =
  27. 27.737² =
  28. 28.293² =
  29. 29.838² =
  30. 30.3654² =
  31. 31.455² =
  32. 32.735² =
  33. 33.906² =
  34. 34.545² =
  35. 35.516² =
  36. 36.876² =
  37. 37.197² =
  38. 38.896² =
  39. 39.290² =
  40. 40.731² =

Answer key

  1. 137641
  2. 58564
  3. 34082244
  4. 446224
  5. 16353936
  6. 724201
  7. 219024
  8. 65642404
  9. 26569
  10. 99420841
  11. 39204
  12. 60000516
  13. 4853209
  14. 75134224
  15. 6400900
  16. 379456
  17. 6943225
  18. 78400
  19. 128881
  20. 81144064
  21. 12321
  22. 736164
  23. 222784
  24. 35952016
  25. 4923961
  26. 298116
  27. 543169
  28. 85849
  29. 702244
  30. 13351716
  31. 207025
  32. 540225
  33. 820836
  34. 297025
  35. 266256
  36. 767376
  37. 38809
  38. 802816
  39. 84100
  40. 534361

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