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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 695 · 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. 1.17³ =
  2. 2.41³ =
  3. 3.38³ =
  4. 4.19³ =
  5. 5.92³ =
  6. 6.91³ =
  7. 7.25³ =
  8. 8.59³ =
  9. 9.14³ =
  10. 10.71³ =
  11. 11.74³ =
  12. 12.13³ =
  13. 13.66³ =
  14. 14.36³ =
  15. 15.39³ =
  16. 16.55³ =
  17. 17.18³ =
  18. 18.61³ =
  19. 19.34³ =
  20. 20.77³ =
  21. 21.41³ =
  22. 22.57³ =
  23. 23.47³ =
  24. 24.69³ =
  25. 25.81³ =
  26. 26.42³ =
  27. 27.51³ =
  28. 28.64³ =
  29. 29.91³ =
  30. 30.41³ =
  31. 31.31³ =
  32. 32.67³ =
  33. 33.53³ =
  34. 34.87³ =
  35. 35.67³ =
  36. 36.79³ =
  37. 37.21³ =
  38. 38.29³ =
  39. 39.71³ =
  40. 40.81³ =

Answer key

  1. 4913
  2. 68921
  3. 54872
  4. 6859
  5. 778688
  6. 753571
  7. 15625
  8. 205379
  9. 2744
  10. 357911
  11. 405224
  12. 2197
  13. 287496
  14. 46656
  15. 59319
  16. 166375
  17. 5832
  18. 226981
  19. 39304
  20. 456533
  21. 68921
  22. 185193
  23. 103823
  24. 328509
  25. 531441
  26. 74088
  27. 132651
  28. 262144
  29. 753571
  30. 68921
  31. 29791
  32. 300763
  33. 148877
  34. 658503
  35. 300763
  36. 493039
  37. 9261
  38. 24389
  39. 357911
  40. 531441

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