← 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 387 · 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. 1.179² =
  2. 2.639² =
  3. 3.264² =
  4. 4.644² =
  5. 5.114² =
  6. 6.411² =
  7. 7.917² =
  8. 8.312² =
  9. 9.472² =
  10. 10.620² =
  11. 11.1311² =
  12. 12.640² =
  13. 13.3848² =
  14. 14.1280² =
  15. 15.1110² =
  16. 16.166² =
  17. 17.2327² =
  18. 18.102² =
  19. 19.213² =
  20. 20.387² =
  21. 21.305² =
  22. 22.599² =
  23. 23.165² =
  24. 24.687² =
  25. 25.1143² =
  26. 26.175² =
  27. 27.840² =
  28. 28.3084² =
  29. 29.590² =
  30. 30.2373² =
  31. 31.233² =
  32. 32.4488² =
  33. 33.8261² =
  34. 34.2819² =
  35. 35.1136² =
  36. 36.786² =
  37. 37.666² =
  38. 38.450² =
  39. 39.464² =
  40. 40.251² =

Answer key

  1. 32041
  2. 408321
  3. 69696
  4. 414736
  5. 12996
  6. 168921
  7. 840889
  8. 97344
  9. 222784
  10. 384400
  11. 1718721
  12. 409600
  13. 14807104
  14. 1638400
  15. 1232100
  16. 27556
  17. 5414929
  18. 10404
  19. 45369
  20. 149769
  21. 93025
  22. 358801
  23. 27225
  24. 471969
  25. 1306449
  26. 30625
  27. 705600
  28. 9511056
  29. 348100
  30. 5631129
  31. 54289
  32. 20142144
  33. 68244121
  34. 7946761
  35. 1290496
  36. 617796
  37. 443556
  38. 202500
  39. 215296
  40. 63001

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