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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 567 · 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. 1.598² =
  2. 2.625² =
  3. 3.934² =
  4. 4.913² =
  5. 5.128² =
  6. 6.2164² =
  7. 7.862² =
  8. 8.813² =
  9. 9.3490² =
  10. 10.4000² =
  11. 11.575² =
  12. 12.131² =
  13. 13.371² =
  14. 14.304² =
  15. 15.303² =
  16. 16.710² =
  17. 17.434² =
  18. 18.996² =
  19. 19.379² =
  20. 20.3477² =
  21. 21.820² =
  22. 22.5647² =
  23. 23.726² =
  24. 24.1432² =
  25. 25.564² =
  26. 26.6903² =
  27. 27.552² =
  28. 28.920² =
  29. 29.1578² =
  30. 30.778² =
  31. 31.5463² =
  32. 32.230² =
  33. 33.880² =
  34. 34.515² =
  35. 35.803² =
  36. 36.939² =
  37. 37.657² =
  38. 38.534² =
  39. 39.224² =
  40. 40.108² =

Answer key

  1. 357604
  2. 390625
  3. 872356
  4. 833569
  5. 16384
  6. 4682896
  7. 743044
  8. 660969
  9. 12180100
  10. 16000000
  11. 330625
  12. 17161
  13. 137641
  14. 92416
  15. 91809
  16. 504100
  17. 188356
  18. 992016
  19. 143641
  20. 12089529
  21. 672400
  22. 31888609
  23. 527076
  24. 2050624
  25. 318096
  26. 47651409
  27. 304704
  28. 846400
  29. 2490084
  30. 605284
  31. 29844369
  32. 52900
  33. 774400
  34. 265225
  35. 644809
  36. 881721
  37. 431649
  38. 285156
  39. 50176
  40. 11664

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