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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 45 · 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. 1.85³ =
  2. 2.23³ =
  3. 3.41³ =
  4. 4.57³ =
  5. 5.43³ =
  6. 6.41³ =
  7. 7.83³ =
  8. 8.69³ =
  9. 9.33³ =
  10. 10.32³ =
  11. 11.42³ =
  12. 12.12³ =
  13. 13.97³ =
  14. 14.98³ =
  15. 15.35³ =
  16. 16.78³ =
  17. 17.85³ =
  18. 18.94³ =
  19. 19.92³ =
  20. 20.64³ =
  21. 21.78³ =
  22. 22.22³ =
  23. 23.81³ =
  24. 24.96³ =
  25. 25.61³ =
  26. 26.49³ =
  27. 27.18³ =
  28. 28.27³ =
  29. 29.85³ =
  30. 30.51³ =
  31. 31.17³ =
  32. 32.36³ =
  33. 33.94³ =
  34. 34.71³ =
  35. 35.14³ =
  36. 36.31³ =
  37. 37.13³ =
  38. 38.83³ =
  39. 39.17³ =
  40. 40.53³ =

Answer key

  1. 614125
  2. 12167
  3. 68921
  4. 185193
  5. 79507
  6. 68921
  7. 571787
  8. 328509
  9. 35937
  10. 32768
  11. 74088
  12. 1728
  13. 912673
  14. 941192
  15. 42875
  16. 474552
  17. 614125
  18. 830584
  19. 778688
  20. 262144
  21. 474552
  22. 10648
  23. 531441
  24. 884736
  25. 226981
  26. 117649
  27. 5832
  28. 19683
  29. 614125
  30. 132651
  31. 4913
  32. 46656
  33. 830584
  34. 357911
  35. 2744
  36. 29791
  37. 2197
  38. 571787
  39. 4913
  40. 148877

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