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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 618 · 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. 1.739² =
  2. 2.533² =
  3. 3.413² =
  4. 4.8989² =
  5. 5.6109² =
  6. 6.2669² =
  7. 7.846² =
  8. 8.257² =
  9. 9.671² =
  10. 10.4478² =
  11. 11.409² =
  12. 12.167² =
  13. 13.1287² =
  14. 14.659² =
  15. 15.4116² =
  16. 16.361² =
  17. 17.2420² =
  18. 18.215² =
  19. 19.378² =
  20. 20.819² =
  21. 21.322² =
  22. 22.170² =
  23. 23.132² =
  24. 24.977² =
  25. 25.111² =
  26. 26.271² =
  27. 27.312² =
  28. 28.238² =
  29. 29.365² =
  30. 30.531² =
  31. 31.2998² =
  32. 32.827² =
  33. 33.2045² =
  34. 34.117² =
  35. 35.515² =
  36. 36.9982² =
  37. 37.2767² =
  38. 38.499² =
  39. 39.351² =
  40. 40.1317² =

Answer key

  1. 546121
  2. 284089
  3. 170569
  4. 80802121
  5. 37319881
  6. 7123561
  7. 715716
  8. 66049
  9. 450241
  10. 20052484
  11. 167281
  12. 27889
  13. 1656369
  14. 434281
  15. 16941456
  16. 130321
  17. 5856400
  18. 46225
  19. 142884
  20. 670761
  21. 103684
  22. 28900
  23. 17424
  24. 954529
  25. 12321
  26. 73441
  27. 97344
  28. 56644
  29. 133225
  30. 281961
  31. 8988004
  32. 683929
  33. 4182025
  34. 13689
  35. 265225
  36. 99640324
  37. 7656289
  38. 249001
  39. 123201
  40. 1734489

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