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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 635 · 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. 1.42³ =
  2. 2.25³ =
  3. 3.26³ =
  4. 4.47³ =
  5. 5.12³ =
  6. 6.26³ =
  7. 7.97³ =
  8. 8.15³ =
  9. 9.81³ =
  10. 10.96³ =
  11. 11.34³ =
  12. 12.89³ =
  13. 13.14³ =
  14. 14.74³ =
  15. 15.39³ =
  16. 16.64³ =
  17. 17.53³ =
  18. 18.74³ =
  19. 19.41³ =
  20. 20.86³ =
  21. 21.94³ =
  22. 22.19³ =
  23. 23.26³ =
  24. 24.17³ =
  25. 25.92³ =
  26. 26.68³ =
  27. 27.65³ =
  28. 28.62³ =
  29. 29.51³ =
  30. 30.81³ =
  31. 31.77³ =
  32. 32.94³ =
  33. 33.76³ =
  34. 34.26³ =
  35. 35.31³ =
  36. 36.71³ =
  37. 37.33³ =
  38. 38.45³ =
  39. 39.61³ =
  40. 40.81³ =

Answer key

  1. 74088
  2. 15625
  3. 17576
  4. 103823
  5. 1728
  6. 17576
  7. 912673
  8. 3375
  9. 531441
  10. 884736
  11. 39304
  12. 704969
  13. 2744
  14. 405224
  15. 59319
  16. 262144
  17. 148877
  18. 405224
  19. 68921
  20. 636056
  21. 830584
  22. 6859
  23. 17576
  24. 4913
  25. 778688
  26. 314432
  27. 274625
  28. 238328
  29. 132651
  30. 531441
  31. 456533
  32. 830584
  33. 438976
  34. 17576
  35. 29791
  36. 357911
  37. 35937
  38. 91125
  39. 226981
  40. 531441

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