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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 261 · 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. 1.11³ =
  2. 2.46³ =
  3. 3.25³ =
  4. 4.67³ =
  5. 5.32³ =
  6. 6.37³ =
  7. 7.75³ =
  8. 8.15³ =
  9. 9.92³ =
  10. 10.58³ =
  11. 11.27³ =
  12. 12.67³ =
  13. 13.59³ =
  14. 14.69³ =
  15. 15.94³ =
  16. 16.49³ =
  17. 17.32³ =
  18. 18.77³ =
  19. 19.67³ =
  20. 20.28³ =
  21. 21.76³ =
  22. 22.93³ =
  23. 23.11³ =
  24. 24.18³ =
  25. 25.42³ =
  26. 26.51³ =
  27. 27.15³ =
  28. 28.41³ =
  29. 29.31³ =
  30. 30.93³ =
  31. 31.23³ =
  32. 32.15³ =
  33. 33.99³ =
  34. 34.79³ =
  35. 35.59³ =
  36. 36.37³ =
  37. 37.24³ =
  38. 38.13³ =
  39. 39.21³ =
  40. 40.44³ =

Answer key

  1. 1331
  2. 97336
  3. 15625
  4. 300763
  5. 32768
  6. 50653
  7. 421875
  8. 3375
  9. 778688
  10. 195112
  11. 19683
  12. 300763
  13. 205379
  14. 328509
  15. 830584
  16. 117649
  17. 32768
  18. 456533
  19. 300763
  20. 21952
  21. 438976
  22. 804357
  23. 1331
  24. 5832
  25. 74088
  26. 132651
  27. 3375
  28. 68921
  29. 29791
  30. 804357
  31. 12167
  32. 3375
  33. 970299
  34. 493039
  35. 205379
  36. 50653
  37. 13824
  38. 2197
  39. 9261
  40. 85184

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