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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 698 · 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. 1.79³ =
  2. 2.96³ =
  3. 3.91³ =
  4. 4.22³ =
  5. 5.93³ =
  6. 6.58³ =
  7. 7.65³ =
  8. 8.78³ =
  9. 9.27³ =
  10. 10.21³ =
  11. 11.26³ =
  12. 12.86³ =
  13. 13.23³ =
  14. 14.65³ =
  15. 15.91³ =
  16. 16.95³ =
  17. 17.43³ =
  18. 18.64³ =
  19. 19.27³ =
  20. 20.93³ =
  21. 21.83³ =
  22. 22.12³ =
  23. 23.94³ =
  24. 24.71³ =
  25. 25.74³ =
  26. 26.18³ =
  27. 27.28³ =
  28. 28.11³ =
  29. 29.32³ =
  30. 30.19³ =
  31. 31.31³ =
  32. 32.59³ =
  33. 33.75³ =
  34. 34.81³ =
  35. 35.77³ =
  36. 36.61³ =
  37. 37.31³ =
  38. 38.27³ =
  39. 39.47³ =
  40. 40.95³ =

Answer key

  1. 493039
  2. 884736
  3. 753571
  4. 10648
  5. 804357
  6. 195112
  7. 274625
  8. 474552
  9. 19683
  10. 9261
  11. 17576
  12. 636056
  13. 12167
  14. 274625
  15. 753571
  16. 857375
  17. 79507
  18. 262144
  19. 19683
  20. 804357
  21. 571787
  22. 1728
  23. 830584
  24. 357911
  25. 405224
  26. 5832
  27. 21952
  28. 1331
  29. 32768
  30. 6859
  31. 29791
  32. 205379
  33. 421875
  34. 531441
  35. 456533
  36. 226981
  37. 29791
  38. 19683
  39. 103823
  40. 857375

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