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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 914 · 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. 1.180² =
  2. 2.784² =
  3. 3.438² =
  4. 4.914² =
  5. 5.8837² =
  6. 6.376² =
  7. 7.277² =
  8. 8.289² =
  9. 9.673² =
  10. 10.940² =
  11. 11.390² =
  12. 12.381² =
  13. 13.439² =
  14. 14.2996² =
  15. 15.313² =
  16. 16.5013² =
  17. 17.196² =
  18. 18.5516² =
  19. 19.594² =
  20. 20.807² =
  21. 21.124² =
  22. 22.635² =
  23. 23.4204² =
  24. 24.2240² =
  25. 25.534² =
  26. 26.193² =
  27. 27.237² =
  28. 28.219² =
  29. 29.516² =
  30. 30.129² =
  31. 31.184² =
  32. 32.8062² =
  33. 33.839² =
  34. 34.251² =
  35. 35.399² =
  36. 36.4386² =
  37. 37.931² =
  38. 38.387² =
  39. 39.773² =
  40. 40.277² =

Answer key

  1. 32400
  2. 614656
  3. 191844
  4. 835396
  5. 78092569
  6. 141376
  7. 76729
  8. 83521
  9. 452929
  10. 883600
  11. 152100
  12. 145161
  13. 192721
  14. 8976016
  15. 97969
  16. 25130169
  17. 38416
  18. 30426256
  19. 352836
  20. 651249
  21. 15376
  22. 403225
  23. 17673616
  24. 5017600
  25. 285156
  26. 37249
  27. 56169
  28. 47961
  29. 266256
  30. 16641
  31. 33856
  32. 64995844
  33. 703921
  34. 63001
  35. 159201
  36. 19236996
  37. 866761
  38. 149769
  39. 597529
  40. 76729

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