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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 29 · 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. 1.59³ =
  2. 2.23³ =
  3. 3.71³ =
  4. 4.74³ =
  5. 5.19³ =
  6. 6.43³ =
  7. 7.96³ =
  8. 8.64³ =
  9. 9.56³ =
  10. 10.69³ =
  11. 11.24³ =
  12. 12.18³ =
  13. 13.31³ =
  14. 14.15³ =
  15. 15.51³ =
  16. 16.85³ =
  17. 17.61³ =
  18. 18.29³ =
  19. 19.32³ =
  20. 20.42³ =
  21. 21.94³ =
  22. 22.82³ =
  23. 23.41³ =
  24. 24.31³ =
  25. 25.53³ =
  26. 26.41³ =
  27. 27.75³ =
  28. 28.29³ =
  29. 29.59³ =
  30. 30.14³ =
  31. 31.67³ =
  32. 32.14³ =
  33. 33.68³ =
  34. 34.12³ =
  35. 35.85³ =
  36. 36.93³ =
  37. 37.84³ =
  38. 38.84³ =
  39. 39.99³ =
  40. 40.35³ =

Answer key

  1. 205379
  2. 12167
  3. 357911
  4. 405224
  5. 6859
  6. 79507
  7. 884736
  8. 262144
  9. 175616
  10. 328509
  11. 13824
  12. 5832
  13. 29791
  14. 3375
  15. 132651
  16. 614125
  17. 226981
  18. 24389
  19. 32768
  20. 74088
  21. 830584
  22. 551368
  23. 68921
  24. 29791
  25. 148877
  26. 68921
  27. 421875
  28. 24389
  29. 205379
  30. 2744
  31. 300763
  32. 2744
  33. 314432
  34. 1728
  35. 614125
  36. 804357
  37. 592704
  38. 592704
  39. 970299
  40. 42875

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