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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 306 · 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. 1.45³ =
  2. 2.67³ =
  3. 3.18³ =
  4. 4.73³ =
  5. 5.28³ =
  6. 6.55³ =
  7. 7.51³ =
  8. 8.36³ =
  9. 9.74³ =
  10. 10.91³ =
  11. 11.39³ =
  12. 12.15³ =
  13. 13.52³ =
  14. 14.14³ =
  15. 15.31³ =
  16. 16.92³ =
  17. 17.21³ =
  18. 18.29³ =
  19. 19.92³ =
  20. 20.21³ =
  21. 21.25³ =
  22. 22.31³ =
  23. 23.18³ =
  24. 24.53³ =
  25. 25.42³ =
  26. 26.47³ =
  27. 27.47³ =
  28. 28.31³ =
  29. 29.77³ =
  30. 30.31³ =
  31. 31.23³ =
  32. 32.41³ =
  33. 33.48³ =
  34. 34.21³ =
  35. 35.46³ =
  36. 36.81³ =
  37. 37.95³ =
  38. 38.43³ =
  39. 39.34³ =
  40. 40.87³ =

Answer key

  1. 91125
  2. 300763
  3. 5832
  4. 389017
  5. 21952
  6. 166375
  7. 132651
  8. 46656
  9. 405224
  10. 753571
  11. 59319
  12. 3375
  13. 140608
  14. 2744
  15. 29791
  16. 778688
  17. 9261
  18. 24389
  19. 778688
  20. 9261
  21. 15625
  22. 29791
  23. 5832
  24. 148877
  25. 74088
  26. 103823
  27. 103823
  28. 29791
  29. 456533
  30. 29791
  31. 12167
  32. 68921
  33. 110592
  34. 9261
  35. 97336
  36. 531441
  37. 857375
  38. 79507
  39. 39304
  40. 658503

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