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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 145 · 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. 1.82³ =
  2. 2.79³ =
  3. 3.14³ =
  4. 4.21³ =
  5. 5.85³ =
  6. 6.48³ =
  7. 7.88³ =
  8. 8.46³ =
  9. 9.83³ =
  10. 10.15³ =
  11. 11.42³ =
  12. 12.82³ =
  13. 13.36³ =
  14. 14.31³ =
  15. 15.91³ =
  16. 16.34³ =
  17. 17.45³ =
  18. 18.79³ =
  19. 19.12³ =
  20. 20.75³ =
  21. 21.95³ =
  22. 22.26³ =
  23. 23.23³ =
  24. 24.32³ =
  25. 25.73³ =
  26. 26.81³ =
  27. 27.21³ =
  28. 28.36³ =
  29. 29.31³ =
  30. 30.13³ =
  31. 31.41³ =
  32. 32.89³ =
  33. 33.53³ =
  34. 34.69³ =
  35. 35.21³ =
  36. 36.94³ =
  37. 37.29³ =
  38. 38.96³ =
  39. 39.94³ =
  40. 40.85³ =

Answer key

  1. 551368
  2. 493039
  3. 2744
  4. 9261
  5. 614125
  6. 110592
  7. 681472
  8. 97336
  9. 571787
  10. 3375
  11. 74088
  12. 551368
  13. 46656
  14. 29791
  15. 753571
  16. 39304
  17. 91125
  18. 493039
  19. 1728
  20. 421875
  21. 857375
  22. 17576
  23. 12167
  24. 32768
  25. 389017
  26. 531441
  27. 9261
  28. 46656
  29. 29791
  30. 2197
  31. 68921
  32. 704969
  33. 148877
  34. 328509
  35. 9261
  36. 830584
  37. 24389
  38. 884736
  39. 830584
  40. 614125

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