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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 669 · 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. 1.36³ =
  2. 2.18³ =
  3. 3.16³ =
  4. 4.71³ =
  5. 5.13³ =
  6. 6.71³ =
  7. 7.34³ =
  8. 8.96³ =
  9. 9.92³ =
  10. 10.31³ =
  11. 11.19³ =
  12. 12.42³ =
  13. 13.47³ =
  14. 14.96³ =
  15. 15.61³ =
  16. 16.68³ =
  17. 17.98³ =
  18. 18.99³ =
  19. 19.29³ =
  20. 20.74³ =
  21. 21.37³ =
  22. 22.78³ =
  23. 23.61³ =
  24. 24.95³ =
  25. 25.37³ =
  26. 26.19³ =
  27. 27.29³ =
  28. 28.33³ =
  29. 29.23³ =
  30. 30.32³ =
  31. 31.44³ =
  32. 32.69³ =
  33. 33.63³ =
  34. 34.53³ =
  35. 35.57³ =
  36. 36.44³ =
  37. 37.51³ =
  38. 38.53³ =
  39. 39.85³ =
  40. 40.26³ =

Answer key

  1. 46656
  2. 5832
  3. 4096
  4. 357911
  5. 2197
  6. 357911
  7. 39304
  8. 884736
  9. 778688
  10. 29791
  11. 6859
  12. 74088
  13. 103823
  14. 884736
  15. 226981
  16. 314432
  17. 941192
  18. 970299
  19. 24389
  20. 405224
  21. 50653
  22. 474552
  23. 226981
  24. 857375
  25. 50653
  26. 6859
  27. 24389
  28. 35937
  29. 12167
  30. 32768
  31. 85184
  32. 328509
  33. 250047
  34. 148877
  35. 185193
  36. 85184
  37. 132651
  38. 148877
  39. 614125
  40. 17576

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