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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 534 · 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. 1.869² =
  2. 2.2080² =
  3. 3.593² =
  4. 4.338² =
  5. 5.689² =
  6. 6.8912² =
  7. 7.3121² =
  8. 8.432² =
  9. 9.862² =
  10. 10.6025² =
  11. 11.339² =
  12. 12.447² =
  13. 13.2292² =
  14. 14.336² =
  15. 15.657² =
  16. 16.874² =
  17. 17.241² =
  18. 18.361² =
  19. 19.959² =
  20. 20.2949² =
  21. 21.931² =
  22. 22.639² =
  23. 23.414² =
  24. 24.174² =
  25. 25.4180² =
  26. 26.2755² =
  27. 27.563² =
  28. 28.5302² =
  29. 29.3986² =
  30. 30.523² =
  31. 31.703² =
  32. 32.720² =
  33. 33.4183² =
  34. 34.224² =
  35. 35.2421² =
  36. 36.449² =
  37. 37.5789² =
  38. 38.117² =
  39. 39.394² =
  40. 40.524² =

Answer key

  1. 755161
  2. 4326400
  3. 351649
  4. 114244
  5. 474721
  6. 79423744
  7. 9740641
  8. 186624
  9. 743044
  10. 36300625
  11. 114921
  12. 199809
  13. 5253264
  14. 112896
  15. 431649
  16. 763876
  17. 58081
  18. 130321
  19. 919681
  20. 8696601
  21. 866761
  22. 408321
  23. 171396
  24. 30276
  25. 17472400
  26. 7590025
  27. 316969
  28. 28111204
  29. 15888196
  30. 273529
  31. 494209
  32. 518400
  33. 17497489
  34. 50176
  35. 5861241
  36. 201601
  37. 33512521
  38. 13689
  39. 155236
  40. 274576

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