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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 158 · 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. 1.558² =
  2. 2.779² =
  3. 3.312² =
  4. 4.986² =
  5. 5.714² =
  6. 6.3093² =
  7. 7.296² =
  8. 8.610² =
  9. 9.5832² =
  10. 10.273² =
  11. 11.9672² =
  12. 12.526² =
  13. 13.216² =
  14. 14.3444² =
  15. 15.9633² =
  16. 16.6678² =
  17. 17.257² =
  18. 18.661² =
  19. 19.255² =
  20. 20.703² =
  21. 21.1851² =
  22. 22.860² =
  23. 23.540² =
  24. 24.3684² =
  25. 25.6717² =
  26. 26.295² =
  27. 27.9718² =
  28. 28.437² =
  29. 29.6332² =
  30. 30.2684² =
  31. 31.641² =
  32. 32.805² =
  33. 33.236² =
  34. 34.595² =
  35. 35.237² =
  36. 36.4346² =
  37. 37.224² =
  38. 38.9589² =
  39. 39.556² =
  40. 40.698² =

Answer key

  1. 311364
  2. 606841
  3. 97344
  4. 972196
  5. 509796
  6. 9566649
  7. 87616
  8. 372100
  9. 34012224
  10. 74529
  11. 93547584
  12. 276676
  13. 46656
  14. 11861136
  15. 92794689
  16. 44595684
  17. 66049
  18. 436921
  19. 65025
  20. 494209
  21. 3426201
  22. 739600
  23. 291600
  24. 13571856
  25. 45118089
  26. 87025
  27. 94439524
  28. 190969
  29. 40094224
  30. 7203856
  31. 410881
  32. 648025
  33. 55696
  34. 354025
  35. 56169
  36. 18887716
  37. 50176
  38. 91948921
  39. 309136
  40. 487204

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