← Squares of 3- and 4-digit numbers lesson New set →

Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 916 · 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. 1.335² =
  2. 2.7548² =
  3. 3.460² =
  4. 4.361² =
  5. 5.694² =
  6. 6.790² =
  7. 7.294² =
  8. 8.1454² =
  9. 9.787² =
  10. 10.9312² =
  11. 11.9178² =
  12. 12.230² =
  13. 13.380² =
  14. 14.824² =
  15. 15.3334² =
  16. 16.907² =
  17. 17.913² =
  18. 18.9948² =
  19. 19.894² =
  20. 20.917² =
  21. 21.610² =
  22. 22.477² =
  23. 23.215² =
  24. 24.1869² =
  25. 25.599² =
  26. 26.654² =
  27. 27.422² =
  28. 28.553² =
  29. 29.277² =
  30. 30.769² =
  31. 31.9284² =
  32. 32.863² =
  33. 33.260² =
  34. 34.446² =
  35. 35.412² =
  36. 36.809² =
  37. 37.276² =
  38. 38.985² =
  39. 39.905² =
  40. 40.196² =

Answer key

  1. 112225
  2. 56972304
  3. 211600
  4. 130321
  5. 481636
  6. 624100
  7. 86436
  8. 2114116
  9. 619369
  10. 86713344
  11. 84235684
  12. 52900
  13. 144400
  14. 678976
  15. 11115556
  16. 822649
  17. 833569
  18. 98962704
  19. 799236
  20. 840889
  21. 372100
  22. 227529
  23. 46225
  24. 3493161
  25. 358801
  26. 427716
  27. 178084
  28. 305809
  29. 76729
  30. 591361
  31. 86192656
  32. 744769
  33. 67600
  34. 198916
  35. 169744
  36. 654481
  37. 76176
  38. 970225
  39. 819025
  40. 38416

Free vedic maths lessons, practice and worksheets at talentjr.in/vedic-maths