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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 297 · 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. 1.73³ =
  2. 2.44³ =
  3. 3.28³ =
  4. 4.67³ =
  5. 5.29³ =
  6. 6.31³ =
  7. 7.31³ =
  8. 8.33³ =
  9. 9.83³ =
  10. 10.45³ =
  11. 11.45³ =
  12. 12.42³ =
  13. 13.37³ =
  14. 14.17³ =
  15. 15.12³ =
  16. 16.46³ =
  17. 17.29³ =
  18. 18.28³ =
  19. 19.85³ =
  20. 20.43³ =
  21. 21.15³ =
  22. 22.32³ =
  23. 23.68³ =
  24. 24.71³ =
  25. 25.12³ =
  26. 26.77³ =
  27. 27.77³ =
  28. 28.77³ =
  29. 29.87³ =
  30. 30.51³ =
  31. 31.88³ =
  32. 32.43³ =
  33. 33.62³ =
  34. 34.61³ =
  35. 35.13³ =
  36. 36.94³ =
  37. 37.83³ =
  38. 38.79³ =
  39. 39.25³ =
  40. 40.88³ =

Answer key

  1. 389017
  2. 85184
  3. 21952
  4. 300763
  5. 24389
  6. 29791
  7. 29791
  8. 35937
  9. 571787
  10. 91125
  11. 91125
  12. 74088
  13. 50653
  14. 4913
  15. 1728
  16. 97336
  17. 24389
  18. 21952
  19. 614125
  20. 79507
  21. 3375
  22. 32768
  23. 314432
  24. 357911
  25. 1728
  26. 456533
  27. 456533
  28. 456533
  29. 658503
  30. 132651
  31. 681472
  32. 79507
  33. 238328
  34. 226981
  35. 2197
  36. 830584
  37. 571787
  38. 493039
  39. 15625
  40. 681472

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