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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 292 · 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. 1.332² =
  2. 2.571² =
  3. 3.395² =
  4. 4.635² =
  5. 5.503² =
  6. 6.539² =
  7. 7.1258² =
  8. 8.412² =
  9. 9.1082² =
  10. 10.318² =
  11. 11.443² =
  12. 12.933² =
  13. 13.360² =
  14. 14.8954² =
  15. 15.631² =
  16. 16.409² =
  17. 17.5074² =
  18. 18.239² =
  19. 19.794² =
  20. 20.8244² =
  21. 21.4454² =
  22. 22.135² =
  23. 23.669² =
  24. 24.361² =
  25. 25.370² =
  26. 26.696² =
  27. 27.966² =
  28. 28.116² =
  29. 29.166² =
  30. 30.792² =
  31. 31.5395² =
  32. 32.933² =
  33. 33.514² =
  34. 34.456² =
  35. 35.404² =
  36. 36.388² =
  37. 37.211² =
  38. 38.347² =
  39. 39.5377² =
  40. 40.963² =

Answer key

  1. 110224
  2. 326041
  3. 156025
  4. 403225
  5. 253009
  6. 290521
  7. 1582564
  8. 169744
  9. 1170724
  10. 101124
  11. 196249
  12. 870489
  13. 129600
  14. 80174116
  15. 398161
  16. 167281
  17. 25745476
  18. 57121
  19. 630436
  20. 67963536
  21. 19838116
  22. 18225
  23. 447561
  24. 130321
  25. 136900
  26. 484416
  27. 933156
  28. 13456
  29. 27556
  30. 627264
  31. 29106025
  32. 870489
  33. 264196
  34. 207936
  35. 163216
  36. 150544
  37. 44521
  38. 120409
  39. 28912129
  40. 927369

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