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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 214 · 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. 1.51³ =
  2. 2.22³ =
  3. 3.31³ =
  4. 4.61³ =
  5. 5.84³ =
  6. 6.53³ =
  7. 7.41³ =
  8. 8.74³ =
  9. 9.37³ =
  10. 10.85³ =
  11. 11.51³ =
  12. 12.69³ =
  13. 13.95³ =
  14. 14.98³ =
  15. 15.14³ =
  16. 16.12³ =
  17. 17.85³ =
  18. 18.94³ =
  19. 19.63³ =
  20. 20.87³ =
  21. 21.31³ =
  22. 22.79³ =
  23. 23.67³ =
  24. 24.18³ =
  25. 25.88³ =
  26. 26.31³ =
  27. 27.26³ =
  28. 28.83³ =
  29. 29.84³ =
  30. 30.51³ =
  31. 31.81³ =
  32. 32.98³ =
  33. 33.88³ =
  34. 34.59³ =
  35. 35.41³ =
  36. 36.42³ =
  37. 37.25³ =
  38. 38.47³ =
  39. 39.14³ =
  40. 40.78³ =

Answer key

  1. 132651
  2. 10648
  3. 29791
  4. 226981
  5. 592704
  6. 148877
  7. 68921
  8. 405224
  9. 50653
  10. 614125
  11. 132651
  12. 328509
  13. 857375
  14. 941192
  15. 2744
  16. 1728
  17. 614125
  18. 830584
  19. 250047
  20. 658503
  21. 29791
  22. 493039
  23. 300763
  24. 5832
  25. 681472
  26. 29791
  27. 17576
  28. 571787
  29. 592704
  30. 132651
  31. 531441
  32. 941192
  33. 681472
  34. 205379
  35. 68921
  36. 74088
  37. 15625
  38. 103823
  39. 2744
  40. 474552

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