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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 309 · 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. 1.58³ =
  2. 2.69³ =
  3. 3.37³ =
  4. 4.31³ =
  5. 5.29³ =
  6. 6.79³ =
  7. 7.31³ =
  8. 8.81³ =
  9. 9.41³ =
  10. 10.14³ =
  11. 11.89³ =
  12. 12.79³ =
  13. 13.22³ =
  14. 14.48³ =
  15. 15.64³ =
  16. 16.13³ =
  17. 17.41³ =
  18. 18.73³ =
  19. 19.48³ =
  20. 20.15³ =
  21. 21.33³ =
  22. 22.56³ =
  23. 23.34³ =
  24. 24.59³ =
  25. 25.48³ =
  26. 26.19³ =
  27. 27.16³ =
  28. 28.62³ =
  29. 29.88³ =
  30. 30.23³ =
  31. 31.99³ =
  32. 32.64³ =
  33. 33.53³ =
  34. 34.21³ =
  35. 35.37³ =
  36. 36.69³ =
  37. 37.79³ =
  38. 38.83³ =
  39. 39.31³ =
  40. 40.37³ =

Answer key

  1. 195112
  2. 328509
  3. 50653
  4. 29791
  5. 24389
  6. 493039
  7. 29791
  8. 531441
  9. 68921
  10. 2744
  11. 704969
  12. 493039
  13. 10648
  14. 110592
  15. 262144
  16. 2197
  17. 68921
  18. 389017
  19. 110592
  20. 3375
  21. 35937
  22. 175616
  23. 39304
  24. 205379
  25. 110592
  26. 6859
  27. 4096
  28. 238328
  29. 681472
  30. 12167
  31. 970299
  32. 262144
  33. 148877
  34. 9261
  35. 50653
  36. 328509
  37. 493039
  38. 571787
  39. 29791
  40. 50653

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