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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 774 · 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. 1.194² =
  2. 2.744² =
  3. 3.388² =
  4. 4.414² =
  5. 5.474² =
  6. 6.2425² =
  7. 7.893² =
  8. 8.687² =
  9. 9.219² =
  10. 10.579² =
  11. 11.587² =
  12. 12.285² =
  13. 13.9929² =
  14. 14.790² =
  15. 15.308² =
  16. 16.7032² =
  17. 17.821² =
  18. 18.284² =
  19. 19.1184² =
  20. 20.5711² =
  21. 21.218² =
  22. 22.516² =
  23. 23.858² =
  24. 24.9483² =
  25. 25.4700² =
  26. 26.8173² =
  27. 27.1566² =
  28. 28.282² =
  29. 29.647² =
  30. 30.5542² =
  31. 31.226² =
  32. 32.7010² =
  33. 33.280² =
  34. 34.232² =
  35. 35.8337² =
  36. 36.7387² =
  37. 37.903² =
  38. 38.796² =
  39. 39.529² =
  40. 40.328² =

Answer key

  1. 37636
  2. 553536
  3. 150544
  4. 171396
  5. 224676
  6. 5880625
  7. 797449
  8. 471969
  9. 47961
  10. 335241
  11. 344569
  12. 81225
  13. 98585041
  14. 624100
  15. 94864
  16. 49449024
  17. 674041
  18. 80656
  19. 1401856
  20. 32615521
  21. 47524
  22. 266256
  23. 736164
  24. 89927289
  25. 22090000
  26. 66797929
  27. 2452356
  28. 79524
  29. 418609
  30. 30713764
  31. 51076
  32. 49140100
  33. 78400
  34. 53824
  35. 69505569
  36. 54567769
  37. 815409
  38. 633616
  39. 279841
  40. 107584

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