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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 957 · 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. 1.3279² =
  2. 2.764² =
  3. 3.748² =
  4. 4.7662² =
  5. 5.563² =
  6. 6.401² =
  7. 7.323² =
  8. 8.116² =
  9. 9.8554² =
  10. 10.364² =
  11. 11.474² =
  12. 12.9765² =
  13. 13.224² =
  14. 14.7559² =
  15. 15.101² =
  16. 16.859² =
  17. 17.907² =
  18. 18.984² =
  19. 19.2823² =
  20. 20.5491² =
  21. 21.125² =
  22. 22.1950² =
  23. 23.341² =
  24. 24.801² =
  25. 25.814² =
  26. 26.350² =
  27. 27.2262² =
  28. 28.137² =
  29. 29.575² =
  30. 30.403² =
  31. 31.381² =
  32. 32.721² =
  33. 33.341² =
  34. 34.9141² =
  35. 35.316² =
  36. 36.597² =
  37. 37.551² =
  38. 38.644² =
  39. 39.864² =
  40. 40.352² =

Answer key

  1. 10751841
  2. 583696
  3. 559504
  4. 58706244
  5. 316969
  6. 160801
  7. 104329
  8. 13456
  9. 73170916
  10. 132496
  11. 224676
  12. 95355225
  13. 50176
  14. 57138481
  15. 10201
  16. 737881
  17. 822649
  18. 968256
  19. 7969329
  20. 30151081
  21. 15625
  22. 3802500
  23. 116281
  24. 641601
  25. 662596
  26. 122500
  27. 5116644
  28. 18769
  29. 330625
  30. 162409
  31. 145161
  32. 519841
  33. 116281
  34. 83557881
  35. 99856
  36. 356409
  37. 303601
  38. 414736
  39. 746496
  40. 123904

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