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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 542 · 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. 1.22³ =
  2. 2.21³ =
  3. 3.82³ =
  4. 4.79³ =
  5. 5.19³ =
  6. 6.31³ =
  7. 7.13³ =
  8. 8.42³ =
  9. 9.13³ =
  10. 10.89³ =
  11. 11.85³ =
  12. 12.27³ =
  13. 13.65³ =
  14. 14.71³ =
  15. 15.97³ =
  16. 16.37³ =
  17. 17.62³ =
  18. 18.15³ =
  19. 19.84³ =
  20. 20.73³ =
  21. 21.58³ =
  22. 22.14³ =
  23. 23.56³ =
  24. 24.36³ =
  25. 25.12³ =
  26. 26.32³ =
  27. 27.36³ =
  28. 28.99³ =
  29. 29.48³ =
  30. 30.45³ =
  31. 31.78³ =
  32. 32.41³ =
  33. 33.22³ =
  34. 34.35³ =
  35. 35.85³ =
  36. 36.61³ =
  37. 37.68³ =
  38. 38.23³ =
  39. 39.57³ =
  40. 40.86³ =

Answer key

  1. 10648
  2. 9261
  3. 551368
  4. 493039
  5. 6859
  6. 29791
  7. 2197
  8. 74088
  9. 2197
  10. 704969
  11. 614125
  12. 19683
  13. 274625
  14. 357911
  15. 912673
  16. 50653
  17. 238328
  18. 3375
  19. 592704
  20. 389017
  21. 195112
  22. 2744
  23. 175616
  24. 46656
  25. 1728
  26. 32768
  27. 46656
  28. 970299
  29. 110592
  30. 91125
  31. 474552
  32. 68921
  33. 10648
  34. 42875
  35. 614125
  36. 226981
  37. 314432
  38. 12167
  39. 185193
  40. 636056

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