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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 721 · 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. 1.91³ =
  2. 2.88³ =
  3. 3.41³ =
  4. 4.94³ =
  5. 5.21³ =
  6. 6.68³ =
  7. 7.56³ =
  8. 8.95³ =
  9. 9.32³ =
  10. 10.81³ =
  11. 11.22³ =
  12. 12.24³ =
  13. 13.74³ =
  14. 14.81³ =
  15. 15.86³ =
  16. 16.65³ =
  17. 17.43³ =
  18. 18.67³ =
  19. 19.22³ =
  20. 20.37³ =
  21. 21.74³ =
  22. 22.78³ =
  23. 23.36³ =
  24. 24.55³ =
  25. 25.64³ =
  26. 26.47³ =
  27. 27.21³ =
  28. 28.55³ =
  29. 29.34³ =
  30. 30.46³ =
  31. 31.65³ =
  32. 32.35³ =
  33. 33.42³ =
  34. 34.14³ =
  35. 35.46³ =
  36. 36.68³ =
  37. 37.87³ =
  38. 38.28³ =
  39. 39.14³ =
  40. 40.36³ =

Answer key

  1. 753571
  2. 681472
  3. 68921
  4. 830584
  5. 9261
  6. 314432
  7. 175616
  8. 857375
  9. 32768
  10. 531441
  11. 10648
  12. 13824
  13. 405224
  14. 531441
  15. 636056
  16. 274625
  17. 79507
  18. 300763
  19. 10648
  20. 50653
  21. 405224
  22. 474552
  23. 46656
  24. 166375
  25. 262144
  26. 103823
  27. 9261
  28. 166375
  29. 39304
  30. 97336
  31. 274625
  32. 42875
  33. 74088
  34. 2744
  35. 97336
  36. 314432
  37. 658503
  38. 21952
  39. 2744
  40. 46656

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