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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 229 · 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. 1.713² =
  2. 2.4699² =
  3. 3.584² =
  4. 4.766² =
  5. 5.968² =
  6. 6.366² =
  7. 7.1726² =
  8. 8.375² =
  9. 9.475² =
  10. 10.346² =
  11. 11.116² =
  12. 12.768² =
  13. 13.793² =
  14. 14.1404² =
  15. 15.4846² =
  16. 16.1893² =
  17. 17.322² =
  18. 18.675² =
  19. 19.110² =
  20. 20.252² =
  21. 21.1196² =
  22. 22.287² =
  23. 23.243² =
  24. 24.630² =
  25. 25.1394² =
  26. 26.222² =
  27. 27.292² =
  28. 28.331² =
  29. 29.828² =
  30. 30.249² =
  31. 31.196² =
  32. 32.5393² =
  33. 33.791² =
  34. 34.214² =
  35. 35.6741² =
  36. 36.223² =
  37. 37.9071² =
  38. 38.851² =
  39. 39.1233² =
  40. 40.561² =

Answer key

  1. 508369
  2. 22080601
  3. 341056
  4. 586756
  5. 937024
  6. 133956
  7. 2979076
  8. 140625
  9. 225625
  10. 119716
  11. 13456
  12. 589824
  13. 628849
  14. 1971216
  15. 23483716
  16. 3583449
  17. 103684
  18. 455625
  19. 12100
  20. 63504
  21. 1430416
  22. 82369
  23. 59049
  24. 396900
  25. 1943236
  26. 49284
  27. 85264
  28. 109561
  29. 685584
  30. 62001
  31. 38416
  32. 29084449
  33. 625681
  34. 45796
  35. 45441081
  36. 49729
  37. 82283041
  38. 724201
  39. 1520289
  40. 314721

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