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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 449 · 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. 2.24³ =
  3. 3.17³ =
  4. 4.33³ =
  5. 5.71³ =
  6. 6.83³ =
  7. 7.51³ =
  8. 8.31³ =
  9. 9.18³ =
  10. 10.49³ =
  11. 11.31³ =
  12. 12.66³ =
  13. 13.61³ =
  14. 14.25³ =
  15. 15.81³ =
  16. 16.38³ =
  17. 17.82³ =
  18. 18.17³ =
  19. 19.21³ =
  20. 20.77³ =
  21. 21.58³ =
  22. 22.84³ =
  23. 23.56³ =
  24. 24.58³ =
  25. 25.19³ =
  26. 26.61³ =
  27. 27.79³ =
  28. 28.85³ =
  29. 29.95³ =
  30. 30.21³ =
  31. 31.77³ =
  32. 32.71³ =
  33. 33.86³ =
  34. 34.31³ =
  35. 35.35³ =
  36. 36.21³ =
  37. 37.41³ =
  38. 38.61³ =
  39. 39.71³ =
  40. 40.63³ =

Answer key

  1. 91125
  2. 13824
  3. 4913
  4. 35937
  5. 357911
  6. 571787
  7. 132651
  8. 29791
  9. 5832
  10. 117649
  11. 29791
  12. 287496
  13. 226981
  14. 15625
  15. 531441
  16. 54872
  17. 551368
  18. 4913
  19. 9261
  20. 456533
  21. 195112
  22. 592704
  23. 175616
  24. 195112
  25. 6859
  26. 226981
  27. 493039
  28. 614125
  29. 857375
  30. 9261
  31. 456533
  32. 357911
  33. 636056
  34. 29791
  35. 42875
  36. 9261
  37. 68921
  38. 226981
  39. 357911
  40. 250047

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