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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 430 · 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. 1.66³ =
  2. 2.33³ =
  3. 3.91³ =
  4. 4.38³ =
  5. 5.28³ =
  6. 6.38³ =
  7. 7.89³ =
  8. 8.36³ =
  9. 9.85³ =
  10. 10.38³ =
  11. 11.12³ =
  12. 12.13³ =
  13. 13.12³ =
  14. 14.85³ =
  15. 15.21³ =
  16. 16.45³ =
  17. 17.59³ =
  18. 18.92³ =
  19. 19.45³ =
  20. 20.33³ =
  21. 21.21³ =
  22. 22.76³ =
  23. 23.74³ =
  24. 24.81³ =
  25. 25.49³ =
  26. 26.31³ =
  27. 27.21³ =
  28. 28.34³ =
  29. 29.65³ =
  30. 30.34³ =
  31. 31.51³ =
  32. 32.17³ =
  33. 33.26³ =
  34. 34.62³ =
  35. 35.56³ =
  36. 36.18³ =
  37. 37.22³ =
  38. 38.53³ =
  39. 39.71³ =
  40. 40.33³ =

Answer key

  1. 287496
  2. 35937
  3. 753571
  4. 54872
  5. 21952
  6. 54872
  7. 704969
  8. 46656
  9. 614125
  10. 54872
  11. 1728
  12. 2197
  13. 1728
  14. 614125
  15. 9261
  16. 91125
  17. 205379
  18. 778688
  19. 91125
  20. 35937
  21. 9261
  22. 438976
  23. 405224
  24. 531441
  25. 117649
  26. 29791
  27. 9261
  28. 39304
  29. 274625
  30. 39304
  31. 132651
  32. 4913
  33. 17576
  34. 238328
  35. 175616
  36. 5832
  37. 10648
  38. 148877
  39. 357911
  40. 35937

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