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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 289 · 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. 1.84³ =
  2. 2.17³ =
  3. 3.42³ =
  4. 4.36³ =
  5. 5.26³ =
  6. 6.85³ =
  7. 7.81³ =
  8. 8.73³ =
  9. 9.93³ =
  10. 10.65³ =
  11. 11.21³ =
  12. 12.84³ =
  13. 13.68³ =
  14. 14.47³ =
  15. 15.65³ =
  16. 16.47³ =
  17. 17.89³ =
  18. 18.19³ =
  19. 19.53³ =
  20. 20.42³ =
  21. 21.43³ =
  22. 22.76³ =
  23. 23.18³ =
  24. 24.95³ =
  25. 25.94³ =
  26. 26.81³ =
  27. 27.65³ =
  28. 28.37³ =
  29. 29.44³ =
  30. 30.84³ =
  31. 31.98³ =
  32. 32.88³ =
  33. 33.51³ =
  34. 34.79³ =
  35. 35.26³ =
  36. 36.25³ =
  37. 37.99³ =
  38. 38.83³ =
  39. 39.79³ =
  40. 40.77³ =

Answer key

  1. 592704
  2. 4913
  3. 74088
  4. 46656
  5. 17576
  6. 614125
  7. 531441
  8. 389017
  9. 804357
  10. 274625
  11. 9261
  12. 592704
  13. 314432
  14. 103823
  15. 274625
  16. 103823
  17. 704969
  18. 6859
  19. 148877
  20. 74088
  21. 79507
  22. 438976
  23. 5832
  24. 857375
  25. 830584
  26. 531441
  27. 274625
  28. 50653
  29. 85184
  30. 592704
  31. 941192
  32. 681472
  33. 132651
  34. 493039
  35. 17576
  36. 15625
  37. 970299
  38. 571787
  39. 493039
  40. 456533

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