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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 589 · 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. 1.12³ =
  2. 2.29³ =
  3. 3.58³ =
  4. 4.64³ =
  5. 5.51³ =
  6. 6.37³ =
  7. 7.26³ =
  8. 8.27³ =
  9. 9.77³ =
  10. 10.56³ =
  11. 11.53³ =
  12. 12.71³ =
  13. 13.98³ =
  14. 14.38³ =
  15. 15.73³ =
  16. 16.52³ =
  17. 17.81³ =
  18. 18.83³ =
  19. 19.84³ =
  20. 20.59³ =
  21. 21.28³ =
  22. 22.21³ =
  23. 23.48³ =
  24. 24.13³ =
  25. 25.27³ =
  26. 26.21³ =
  27. 27.64³ =
  28. 28.38³ =
  29. 29.18³ =
  30. 30.13³ =
  31. 31.87³ =
  32. 32.91³ =
  33. 33.13³ =
  34. 34.63³ =
  35. 35.87³ =
  36. 36.68³ =
  37. 37.63³ =
  38. 38.83³ =
  39. 39.73³ =
  40. 40.17³ =

Answer key

  1. 1728
  2. 24389
  3. 195112
  4. 262144
  5. 132651
  6. 50653
  7. 17576
  8. 19683
  9. 456533
  10. 175616
  11. 148877
  12. 357911
  13. 941192
  14. 54872
  15. 389017
  16. 140608
  17. 531441
  18. 571787
  19. 592704
  20. 205379
  21. 21952
  22. 9261
  23. 110592
  24. 2197
  25. 19683
  26. 9261
  27. 262144
  28. 54872
  29. 5832
  30. 2197
  31. 658503
  32. 753571
  33. 2197
  34. 250047
  35. 658503
  36. 314432
  37. 250047
  38. 571787
  39. 389017
  40. 4913

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