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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 59 · 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. 1.800² =
  2. 2.504² =
  3. 3.730² =
  4. 4.364² =
  5. 5.3519² =
  6. 6.179² =
  7. 7.160² =
  8. 8.499² =
  9. 9.1011² =
  10. 10.839² =
  11. 11.132² =
  12. 12.9115² =
  13. 13.235² =
  14. 14.364² =
  15. 15.1198² =
  16. 16.483² =
  17. 17.961² =
  18. 18.658² =
  19. 19.3837² =
  20. 20.283² =
  21. 21.2678² =
  22. 22.6604² =
  23. 23.680² =
  24. 24.827² =
  25. 25.678² =
  26. 26.111² =
  27. 27.827² =
  28. 28.183² =
  29. 29.447² =
  30. 30.8150² =
  31. 31.342² =
  32. 32.202² =
  33. 33.647² =
  34. 34.393² =
  35. 35.509² =
  36. 36.2042² =
  37. 37.882² =
  38. 38.1153² =
  39. 39.1265² =
  40. 40.787² =

Answer key

  1. 640000
  2. 254016
  3. 532900
  4. 132496
  5. 12383361
  6. 32041
  7. 25600
  8. 249001
  9. 1022121
  10. 703921
  11. 17424
  12. 83083225
  13. 55225
  14. 132496
  15. 1435204
  16. 233289
  17. 923521
  18. 432964
  19. 14722569
  20. 80089
  21. 7171684
  22. 43612816
  23. 462400
  24. 683929
  25. 459684
  26. 12321
  27. 683929
  28. 33489
  29. 199809
  30. 66422500
  31. 116964
  32. 40804
  33. 418609
  34. 154449
  35. 259081
  36. 4169764
  37. 777924
  38. 1329409
  39. 1600225
  40. 619369

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