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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 991 · 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. 1.9624² =
  2. 2.454² =
  3. 3.658² =
  4. 4.9785² =
  5. 5.382² =
  6. 6.633² =
  7. 7.168² =
  8. 8.367² =
  9. 9.783² =
  10. 10.7255² =
  11. 11.937² =
  12. 12.9476² =
  13. 13.363² =
  14. 14.217² =
  15. 15.132² =
  16. 16.724² =
  17. 17.351² =
  18. 18.679² =
  19. 19.8449² =
  20. 20.598² =
  21. 21.462² =
  22. 22.639² =
  23. 23.2252² =
  24. 24.487² =
  25. 25.3078² =
  26. 26.1351² =
  27. 27.1469² =
  28. 28.788² =
  29. 29.892² =
  30. 30.775² =
  31. 31.882² =
  32. 32.781² =
  33. 33.6868² =
  34. 34.596² =
  35. 35.401² =
  36. 36.4420² =
  37. 37.6965² =
  38. 38.5183² =
  39. 39.182² =
  40. 40.5426² =

Answer key

  1. 92621376
  2. 206116
  3. 432964
  4. 95746225
  5. 145924
  6. 400689
  7. 28224
  8. 134689
  9. 613089
  10. 52635025
  11. 877969
  12. 89794576
  13. 131769
  14. 47089
  15. 17424
  16. 524176
  17. 123201
  18. 461041
  19. 71385601
  20. 357604
  21. 213444
  22. 408321
  23. 5071504
  24. 237169
  25. 9474084
  26. 1825201
  27. 2157961
  28. 620944
  29. 795664
  30. 600625
  31. 777924
  32. 609961
  33. 47169424
  34. 355216
  35. 160801
  36. 19536400
  37. 48511225
  38. 26863489
  39. 33124
  40. 29441476

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