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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 785 · 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. 1.71³ =
  2. 2.65³ =
  3. 3.63³ =
  4. 4.67³ =
  5. 5.73³ =
  6. 6.42³ =
  7. 7.61³ =
  8. 8.65³ =
  9. 9.46³ =
  10. 10.11³ =
  11. 11.58³ =
  12. 12.47³ =
  13. 13.31³ =
  14. 14.81³ =
  15. 15.64³ =
  16. 16.56³ =
  17. 17.91³ =
  18. 18.54³ =
  19. 19.26³ =
  20. 20.62³ =
  21. 21.13³ =
  22. 22.89³ =
  23. 23.87³ =
  24. 24.27³ =
  25. 25.11³ =
  26. 26.99³ =
  27. 27.95³ =
  28. 28.67³ =
  29. 29.43³ =
  30. 30.65³ =
  31. 31.13³ =
  32. 32.87³ =
  33. 33.56³ =
  34. 34.17³ =
  35. 35.11³ =
  36. 36.77³ =
  37. 37.21³ =
  38. 38.74³ =
  39. 39.36³ =
  40. 40.42³ =

Answer key

  1. 357911
  2. 274625
  3. 250047
  4. 300763
  5. 389017
  6. 74088
  7. 226981
  8. 274625
  9. 97336
  10. 1331
  11. 195112
  12. 103823
  13. 29791
  14. 531441
  15. 262144
  16. 175616
  17. 753571
  18. 157464
  19. 17576
  20. 238328
  21. 2197
  22. 704969
  23. 658503
  24. 19683
  25. 1331
  26. 970299
  27. 857375
  28. 300763
  29. 79507
  30. 274625
  31. 2197
  32. 658503
  33. 175616
  34. 4913
  35. 1331
  36. 456533
  37. 9261
  38. 405224
  39. 46656
  40. 74088

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