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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 275 · 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. 1.763² =
  2. 2.677² =
  3. 3.523² =
  4. 4.595² =
  5. 5.432² =
  6. 6.7287² =
  7. 7.687² =
  8. 8.553² =
  9. 9.290² =
  10. 10.3719² =
  11. 11.803² =
  12. 12.421² =
  13. 13.200² =
  14. 14.2351² =
  15. 15.687² =
  16. 16.463² =
  17. 17.517² =
  18. 18.887² =
  19. 19.470² =
  20. 20.532² =
  21. 21.378² =
  22. 22.964² =
  23. 23.1483² =
  24. 24.999² =
  25. 25.8464² =
  26. 26.423² =
  27. 27.283² =
  28. 28.156² =
  29. 29.1507² =
  30. 30.192² =
  31. 31.221² =
  32. 32.869² =
  33. 33.422² =
  34. 34.258² =
  35. 35.127² =
  36. 36.988² =
  37. 37.6062² =
  38. 38.315² =
  39. 39.4938² =
  40. 40.5860² =

Answer key

  1. 582169
  2. 458329
  3. 273529
  4. 354025
  5. 186624
  6. 53100369
  7. 471969
  8. 305809
  9. 84100
  10. 13830961
  11. 644809
  12. 177241
  13. 40000
  14. 5527201
  15. 471969
  16. 214369
  17. 267289
  18. 786769
  19. 220900
  20. 283024
  21. 142884
  22. 929296
  23. 2199289
  24. 998001
  25. 71639296
  26. 178929
  27. 80089
  28. 24336
  29. 2271049
  30. 36864
  31. 48841
  32. 755161
  33. 178084
  34. 66564
  35. 16129
  36. 976144
  37. 36747844
  38. 99225
  39. 24383844
  40. 34339600

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