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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 665 · 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. 1.735² =
  2. 2.274² =
  3. 3.257² =
  4. 4.377² =
  5. 5.124² =
  6. 6.4065² =
  7. 7.556² =
  8. 8.515² =
  9. 9.355² =
  10. 10.592² =
  11. 11.429² =
  12. 12.3390² =
  13. 13.8646² =
  14. 14.450² =
  15. 15.6725² =
  16. 16.1211² =
  17. 17.767² =
  18. 18.5879² =
  19. 19.515² =
  20. 20.935² =
  21. 21.5327² =
  22. 22.3655² =
  23. 23.903² =
  24. 24.962² =
  25. 25.480² =
  26. 26.2169² =
  27. 27.361² =
  28. 28.788² =
  29. 29.969² =
  30. 30.579² =
  31. 31.6107² =
  32. 32.7485² =
  33. 33.8804² =
  34. 34.374² =
  35. 35.740² =
  36. 36.186² =
  37. 37.543² =
  38. 38.858² =
  39. 39.4390² =
  40. 40.5051² =

Answer key

  1. 540225
  2. 75076
  3. 66049
  4. 142129
  5. 15376
  6. 16524225
  7. 309136
  8. 265225
  9. 126025
  10. 350464
  11. 184041
  12. 11492100
  13. 74753316
  14. 202500
  15. 45225625
  16. 1466521
  17. 588289
  18. 34562641
  19. 265225
  20. 874225
  21. 28376929
  22. 13359025
  23. 815409
  24. 925444
  25. 230400
  26. 4704561
  27. 130321
  28. 620944
  29. 938961
  30. 335241
  31. 37295449
  32. 56025225
  33. 77510416
  34. 139876
  35. 547600
  36. 34596
  37. 294849
  38. 736164
  39. 19272100
  40. 25512601

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