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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 556 · 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. 1.487² =
  2. 2.121² =
  3. 3.172² =
  4. 4.1167² =
  5. 5.3166² =
  6. 6.825² =
  7. 7.3503² =
  8. 8.9784² =
  9. 9.4487² =
  10. 10.130² =
  11. 11.635² =
  12. 12.6809² =
  13. 13.514² =
  14. 14.6131² =
  15. 15.472² =
  16. 16.763² =
  17. 17.405² =
  18. 18.738² =
  19. 19.808² =
  20. 20.947² =
  21. 21.1197² =
  22. 22.223² =
  23. 23.546² =
  24. 24.219² =
  25. 25.470² =
  26. 26.947² =
  27. 27.688² =
  28. 28.978² =
  29. 29.169² =
  30. 30.3270² =
  31. 31.279² =
  32. 32.889² =
  33. 33.934² =
  34. 34.138² =
  35. 35.459² =
  36. 36.6363² =
  37. 37.2667² =
  38. 38.751² =
  39. 39.821² =
  40. 40.396² =

Answer key

  1. 237169
  2. 14641
  3. 29584
  4. 1361889
  5. 10023556
  6. 680625
  7. 12271009
  8. 95726656
  9. 20133169
  10. 16900
  11. 403225
  12. 46362481
  13. 264196
  14. 37589161
  15. 222784
  16. 582169
  17. 164025
  18. 544644
  19. 652864
  20. 896809
  21. 1432809
  22. 49729
  23. 298116
  24. 47961
  25. 220900
  26. 896809
  27. 473344
  28. 956484
  29. 28561
  30. 10692900
  31. 77841
  32. 790321
  33. 872356
  34. 19044
  35. 210681
  36. 40487769
  37. 7112889
  38. 564001
  39. 674041
  40. 156816

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