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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 709 · 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. 1.32³ =
  2. 2.72³ =
  3. 3.11³ =
  4. 4.21³ =
  5. 5.13³ =
  6. 6.57³ =
  7. 7.84³ =
  8. 8.35³ =
  9. 9.69³ =
  10. 10.55³ =
  11. 11.11³ =
  12. 12.29³ =
  13. 13.82³ =
  14. 14.12³ =
  15. 15.84³ =
  16. 16.89³ =
  17. 17.51³ =
  18. 18.65³ =
  19. 19.81³ =
  20. 20.17³ =
  21. 21.45³ =
  22. 22.63³ =
  23. 23.38³ =
  24. 24.16³ =
  25. 25.29³ =
  26. 26.81³ =
  27. 27.15³ =
  28. 28.37³ =
  29. 29.32³ =
  30. 30.38³ =
  31. 31.15³ =
  32. 32.71³ =
  33. 33.78³ =
  34. 34.11³ =
  35. 35.12³ =
  36. 36.81³ =
  37. 37.58³ =
  38. 38.51³ =
  39. 39.18³ =
  40. 40.61³ =

Answer key

  1. 32768
  2. 373248
  3. 1331
  4. 9261
  5. 2197
  6. 185193
  7. 592704
  8. 42875
  9. 328509
  10. 166375
  11. 1331
  12. 24389
  13. 551368
  14. 1728
  15. 592704
  16. 704969
  17. 132651
  18. 274625
  19. 531441
  20. 4913
  21. 91125
  22. 250047
  23. 54872
  24. 4096
  25. 24389
  26. 531441
  27. 3375
  28. 50653
  29. 32768
  30. 54872
  31. 3375
  32. 357911
  33. 474552
  34. 1331
  35. 1728
  36. 531441
  37. 195112
  38. 132651
  39. 5832
  40. 226981

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