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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 880 · 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. 1.9727² =
  2. 2.926² =
  3. 3.773² =
  4. 4.901² =
  5. 5.416² =
  6. 6.297² =
  7. 7.319² =
  8. 8.609² =
  9. 9.948² =
  10. 10.613² =
  11. 11.880² =
  12. 12.419² =
  13. 13.8747² =
  14. 14.559² =
  15. 15.995² =
  16. 16.1285² =
  17. 17.888² =
  18. 18.766² =
  19. 19.1303² =
  20. 20.381² =
  21. 21.421² =
  22. 22.725² =
  23. 23.1807² =
  24. 24.2550² =
  25. 25.7702² =
  26. 26.230² =
  27. 27.370² =
  28. 28.646² =
  29. 29.401² =
  30. 30.183² =
  31. 31.8432² =
  32. 32.2243² =
  33. 33.3234² =
  34. 34.290² =
  35. 35.322² =
  36. 36.677² =
  37. 37.616² =
  38. 38.7459² =
  39. 39.8646² =
  40. 40.175² =

Answer key

  1. 94614529
  2. 857476
  3. 597529
  4. 811801
  5. 173056
  6. 88209
  7. 101761
  8. 370881
  9. 898704
  10. 375769
  11. 774400
  12. 175561
  13. 76510009
  14. 312481
  15. 990025
  16. 1651225
  17. 788544
  18. 586756
  19. 1697809
  20. 145161
  21. 177241
  22. 525625
  23. 3265249
  24. 6502500
  25. 59320804
  26. 52900
  27. 136900
  28. 417316
  29. 160801
  30. 33489
  31. 71098624
  32. 5031049
  33. 10458756
  34. 84100
  35. 103684
  36. 458329
  37. 379456
  38. 55636681
  39. 74753316
  40. 30625

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