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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 579 · 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. 1.74³ =
  2. 2.89³ =
  3. 3.71³ =
  4. 4.46³ =
  5. 5.23³ =
  6. 6.74³ =
  7. 7.36³ =
  8. 8.49³ =
  9. 9.36³ =
  10. 10.29³ =
  11. 11.65³ =
  12. 12.53³ =
  13. 13.87³ =
  14. 14.75³ =
  15. 15.78³ =
  16. 16.71³ =
  17. 17.17³ =
  18. 18.23³ =
  19. 19.23³ =
  20. 20.51³ =
  21. 21.98³ =
  22. 22.33³ =
  23. 23.81³ =
  24. 24.43³ =
  25. 25.91³ =
  26. 26.84³ =
  27. 27.28³ =
  28. 28.91³ =
  29. 29.75³ =
  30. 30.99³ =
  31. 31.82³ =
  32. 32.35³ =
  33. 33.57³ =
  34. 34.32³ =
  35. 35.14³ =
  36. 36.76³ =
  37. 37.11³ =
  38. 38.45³ =
  39. 39.26³ =
  40. 40.71³ =

Answer key

  1. 405224
  2. 704969
  3. 357911
  4. 97336
  5. 12167
  6. 405224
  7. 46656
  8. 117649
  9. 46656
  10. 24389
  11. 274625
  12. 148877
  13. 658503
  14. 421875
  15. 474552
  16. 357911
  17. 4913
  18. 12167
  19. 12167
  20. 132651
  21. 941192
  22. 35937
  23. 531441
  24. 79507
  25. 753571
  26. 592704
  27. 21952
  28. 753571
  29. 421875
  30. 970299
  31. 551368
  32. 42875
  33. 185193
  34. 32768
  35. 2744
  36. 438976
  37. 1331
  38. 91125
  39. 17576
  40. 357911

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