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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 137 · 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. 1.81³ =
  2. 2.28³ =
  3. 3.18³ =
  4. 4.66³ =
  5. 5.32³ =
  6. 6.63³ =
  7. 7.13³ =
  8. 8.81³ =
  9. 9.31³ =
  10. 10.28³ =
  11. 11.26³ =
  12. 12.67³ =
  13. 13.16³ =
  14. 14.62³ =
  15. 15.82³ =
  16. 16.36³ =
  17. 17.95³ =
  18. 18.27³ =
  19. 19.23³ =
  20. 20.11³ =
  21. 21.16³ =
  22. 22.88³ =
  23. 23.61³ =
  24. 24.35³ =
  25. 25.66³ =
  26. 26.25³ =
  27. 27.77³ =
  28. 28.17³ =
  29. 29.53³ =
  30. 30.24³ =
  31. 31.59³ =
  32. 32.74³ =
  33. 33.17³ =
  34. 34.36³ =
  35. 35.61³ =
  36. 36.81³ =
  37. 37.74³ =
  38. 38.28³ =
  39. 39.21³ =
  40. 40.38³ =

Answer key

  1. 531441
  2. 21952
  3. 5832
  4. 287496
  5. 32768
  6. 250047
  7. 2197
  8. 531441
  9. 29791
  10. 21952
  11. 17576
  12. 300763
  13. 4096
  14. 238328
  15. 551368
  16. 46656
  17. 857375
  18. 19683
  19. 12167
  20. 1331
  21. 4096
  22. 681472
  23. 226981
  24. 42875
  25. 287496
  26. 15625
  27. 456533
  28. 4913
  29. 148877
  30. 13824
  31. 205379
  32. 405224
  33. 4913
  34. 46656
  35. 226981
  36. 531441
  37. 405224
  38. 21952
  39. 9261
  40. 54872

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