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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 846 · 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. 1.736² =
  2. 2.268² =
  3. 3.2156² =
  4. 4.845² =
  5. 5.2164² =
  6. 6.726² =
  7. 7.303² =
  8. 8.3363² =
  9. 9.671² =
  10. 10.982² =
  11. 11.265² =
  12. 12.707² =
  13. 13.121² =
  14. 14.830² =
  15. 15.377² =
  16. 16.5542² =
  17. 17.183² =
  18. 18.5181² =
  19. 19.256² =
  20. 20.465² =
  21. 21.402² =
  22. 22.705² =
  23. 23.494² =
  24. 24.327² =
  25. 25.491² =
  26. 26.7096² =
  27. 27.8658² =
  28. 28.313² =
  29. 29.749² =
  30. 30.760² =
  31. 31.225² =
  32. 32.332² =
  33. 33.171² =
  34. 34.5561² =
  35. 35.6556² =
  36. 36.345² =
  37. 37.8189² =
  38. 38.997² =
  39. 39.5503² =
  40. 40.5538² =

Answer key

  1. 541696
  2. 71824
  3. 4648336
  4. 714025
  5. 4682896
  6. 527076
  7. 91809
  8. 11309769
  9. 450241
  10. 964324
  11. 70225
  12. 499849
  13. 14641
  14. 688900
  15. 142129
  16. 30713764
  17. 33489
  18. 26842761
  19. 65536
  20. 216225
  21. 161604
  22. 497025
  23. 244036
  24. 106929
  25. 241081
  26. 50353216
  27. 74960964
  28. 97969
  29. 561001
  30. 577600
  31. 50625
  32. 110224
  33. 29241
  34. 30924721
  35. 42981136
  36. 119025
  37. 67059721
  38. 994009
  39. 30283009
  40. 30669444

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