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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 637 · 40 sums
TalentJR

The trick (Anurupyena): Top row: a³, a²b, ab², b³ (each term is the one before × b ÷ a). Under the two middle terms write double of them, and add: a³ | 3a²b | 3ab² | b³. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.41³ =
  2. 2.51³ =
  3. 3.22³ =
  4. 4.28³ =
  5. 5.97³ =
  6. 6.11³ =
  7. 7.55³ =
  8. 8.62³ =
  9. 9.55³ =
  10. 10.32³ =
  11. 11.21³ =
  12. 12.23³ =
  13. 13.34³ =
  14. 14.47³ =
  15. 15.42³ =
  16. 16.93³ =
  17. 17.56³ =
  18. 18.15³ =
  19. 19.55³ =
  20. 20.48³ =
  21. 21.51³ =
  22. 22.68³ =
  23. 23.99³ =
  24. 24.14³ =
  25. 25.49³ =
  26. 26.91³ =
  27. 27.31³ =
  28. 28.17³ =
  29. 29.21³ =
  30. 30.18³ =
  31. 31.51³ =
  32. 32.65³ =
  33. 33.34³ =
  34. 34.99³ =
  35. 35.51³ =
  36. 36.31³ =
  37. 37.85³ =
  38. 38.81³ =
  39. 39.47³ =
  40. 40.97³ =

Answer key

  1. 68921
  2. 132651
  3. 10648
  4. 21952
  5. 912673
  6. 1331
  7. 166375
  8. 238328
  9. 166375
  10. 32768
  11. 9261
  12. 12167
  13. 39304
  14. 103823
  15. 74088
  16. 804357
  17. 175616
  18. 3375
  19. 166375
  20. 110592
  21. 132651
  22. 314432
  23. 970299
  24. 2744
  25. 117649
  26. 753571
  27. 29791
  28. 4913
  29. 9261
  30. 5832
  31. 132651
  32. 274625
  33. 39304
  34. 970299
  35. 132651
  36. 29791
  37. 614125
  38. 531441
  39. 103823
  40. 912673

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