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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 909 · 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. 1.88³ =
  2. 2.18³ =
  3. 3.15³ =
  4. 4.53³ =
  5. 5.32³ =
  6. 6.28³ =
  7. 7.31³ =
  8. 8.12³ =
  9. 9.79³ =
  10. 10.49³ =
  11. 11.43³ =
  12. 12.32³ =
  13. 13.24³ =
  14. 14.82³ =
  15. 15.97³ =
  16. 16.57³ =
  17. 17.23³ =
  18. 18.97³ =
  19. 19.85³ =
  20. 20.66³ =
  21. 21.36³ =
  22. 22.81³ =
  23. 23.21³ =
  24. 24.61³ =
  25. 25.63³ =
  26. 26.41³ =
  27. 27.11³ =
  28. 28.38³ =
  29. 29.32³ =
  30. 30.75³ =
  31. 31.61³ =
  32. 32.19³ =
  33. 33.96³ =
  34. 34.21³ =
  35. 35.46³ =
  36. 36.36³ =
  37. 37.43³ =
  38. 38.15³ =
  39. 39.87³ =
  40. 40.47³ =

Answer key

  1. 681472
  2. 5832
  3. 3375
  4. 148877
  5. 32768
  6. 21952
  7. 29791
  8. 1728
  9. 493039
  10. 117649
  11. 79507
  12. 32768
  13. 13824
  14. 551368
  15. 912673
  16. 185193
  17. 12167
  18. 912673
  19. 614125
  20. 287496
  21. 46656
  22. 531441
  23. 9261
  24. 226981
  25. 250047
  26. 68921
  27. 1331
  28. 54872
  29. 32768
  30. 421875
  31. 226981
  32. 6859
  33. 884736
  34. 9261
  35. 97336
  36. 46656
  37. 79507
  38. 3375
  39. 658503
  40. 103823

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