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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 642 · 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. 1.766² =
  2. 2.7760² =
  3. 3.179² =
  4. 4.5482² =
  5. 5.4133² =
  6. 6.246² =
  7. 7.965² =
  8. 8.939² =
  9. 9.722² =
  10. 10.166² =
  11. 11.106² =
  12. 12.199² =
  13. 13.649² =
  14. 14.706² =
  15. 15.905² =
  16. 16.211² =
  17. 17.999² =
  18. 18.4536² =
  19. 19.775² =
  20. 20.105² =
  21. 21.896² =
  22. 22.277² =
  23. 23.134² =
  24. 24.449² =
  25. 25.7618² =
  26. 26.951² =
  27. 27.7389² =
  28. 28.694² =
  29. 29.275² =
  30. 30.3304² =
  31. 31.247² =
  32. 32.143² =
  33. 33.344² =
  34. 34.296² =
  35. 35.7458² =
  36. 36.727² =
  37. 37.227² =
  38. 38.773² =
  39. 39.1374² =
  40. 40.404² =

Answer key

  1. 586756
  2. 60217600
  3. 32041
  4. 30052324
  5. 17081689
  6. 60516
  7. 931225
  8. 881721
  9. 521284
  10. 27556
  11. 11236
  12. 39601
  13. 421201
  14. 498436
  15. 819025
  16. 44521
  17. 998001
  18. 20575296
  19. 600625
  20. 11025
  21. 802816
  22. 76729
  23. 17956
  24. 201601
  25. 58033924
  26. 904401
  27. 54597321
  28. 481636
  29. 75625
  30. 10916416
  31. 61009
  32. 20449
  33. 118336
  34. 87616
  35. 55621764
  36. 528529
  37. 51529
  38. 597529
  39. 1887876
  40. 163216

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