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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 805 · 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. 1.255² =
  2. 2.154² =
  3. 3.2482² =
  4. 4.587² =
  5. 5.411² =
  6. 6.2321² =
  7. 7.263² =
  8. 8.4037² =
  9. 9.599² =
  10. 10.7729² =
  11. 11.934² =
  12. 12.341² =
  13. 13.1563² =
  14. 14.490² =
  15. 15.8501² =
  16. 16.4965² =
  17. 17.774² =
  18. 18.831² =
  19. 19.326² =
  20. 20.675² =
  21. 21.655² =
  22. 22.4079² =
  23. 23.818² =
  24. 24.8916² =
  25. 25.7369² =
  26. 26.479² =
  27. 27.978² =
  28. 28.7017² =
  29. 29.825² =
  30. 30.225² =
  31. 31.305² =
  32. 32.895² =
  33. 33.597² =
  34. 34.545² =
  35. 35.298² =
  36. 36.243² =
  37. 37.337² =
  38. 38.709² =
  39. 39.8293² =
  40. 40.5151² =

Answer key

  1. 65025
  2. 23716
  3. 6160324
  4. 344569
  5. 168921
  6. 5387041
  7. 69169
  8. 16297369
  9. 358801
  10. 59737441
  11. 872356
  12. 116281
  13. 2442969
  14. 240100
  15. 72267001
  16. 24651225
  17. 599076
  18. 690561
  19. 106276
  20. 455625
  21. 429025
  22. 16638241
  23. 669124
  24. 79495056
  25. 54302161
  26. 229441
  27. 956484
  28. 49238289
  29. 680625
  30. 50625
  31. 93025
  32. 801025
  33. 356409
  34. 297025
  35. 88804
  36. 59049
  37. 113569
  38. 502681
  39. 68773849
  40. 26532801

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