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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 552 · 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. 1.230² =
  2. 2.472² =
  3. 3.200² =
  4. 4.2662² =
  5. 5.558² =
  6. 6.378² =
  7. 7.4309² =
  8. 8.609² =
  9. 9.710² =
  10. 10.8359² =
  11. 11.3258² =
  12. 12.772² =
  13. 13.2594² =
  14. 14.790² =
  15. 15.598² =
  16. 16.259² =
  17. 17.968² =
  18. 18.757² =
  19. 19.857² =
  20. 20.632² =
  21. 21.279² =
  22. 22.896² =
  23. 23.2417² =
  24. 24.483² =
  25. 25.1552² =
  26. 26.364² =
  27. 27.234² =
  28. 28.505² =
  29. 29.188² =
  30. 30.653² =
  31. 31.9265² =
  32. 32.821² =
  33. 33.715² =
  34. 34.727² =
  35. 35.879² =
  36. 36.771² =
  37. 37.4464² =
  38. 38.887² =
  39. 39.456² =
  40. 40.261² =

Answer key

  1. 52900
  2. 222784
  3. 40000
  4. 7086244
  5. 311364
  6. 142884
  7. 18567481
  8. 370881
  9. 504100
  10. 69872881
  11. 10614564
  12. 595984
  13. 6728836
  14. 624100
  15. 357604
  16. 67081
  17. 937024
  18. 573049
  19. 734449
  20. 399424
  21. 77841
  22. 802816
  23. 5841889
  24. 233289
  25. 2408704
  26. 132496
  27. 54756
  28. 255025
  29. 35344
  30. 426409
  31. 85840225
  32. 674041
  33. 511225
  34. 528529
  35. 772641
  36. 594441
  37. 19927296
  38. 786769
  39. 207936
  40. 68121

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