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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 764 · 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. 1.44³ =
  2. 2.42³ =
  3. 3.25³ =
  4. 4.65³ =
  5. 5.33³ =
  6. 6.79³ =
  7. 7.95³ =
  8. 8.23³ =
  9. 9.31³ =
  10. 10.26³ =
  11. 11.64³ =
  12. 12.61³ =
  13. 13.46³ =
  14. 14.58³ =
  15. 15.36³ =
  16. 16.37³ =
  17. 17.97³ =
  18. 18.31³ =
  19. 19.11³ =
  20. 20.64³ =
  21. 21.96³ =
  22. 22.84³ =
  23. 23.61³ =
  24. 24.44³ =
  25. 25.52³ =
  26. 26.71³ =
  27. 27.32³ =
  28. 28.77³ =
  29. 29.24³ =
  30. 30.47³ =
  31. 31.16³ =
  32. 32.27³ =
  33. 33.23³ =
  34. 34.55³ =
  35. 35.57³ =
  36. 36.89³ =
  37. 37.48³ =
  38. 38.78³ =
  39. 39.31³ =
  40. 40.15³ =

Answer key

  1. 85184
  2. 74088
  3. 15625
  4. 274625
  5. 35937
  6. 493039
  7. 857375
  8. 12167
  9. 29791
  10. 17576
  11. 262144
  12. 226981
  13. 97336
  14. 195112
  15. 46656
  16. 50653
  17. 912673
  18. 29791
  19. 1331
  20. 262144
  21. 884736
  22. 592704
  23. 226981
  24. 85184
  25. 140608
  26. 357911
  27. 32768
  28. 456533
  29. 13824
  30. 103823
  31. 4096
  32. 19683
  33. 12167
  34. 166375
  35. 185193
  36. 704969
  37. 110592
  38. 474552
  39. 29791
  40. 3375

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