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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 442 · 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. 1.33³ =
  2. 2.71³ =
  3. 3.69³ =
  4. 4.99³ =
  5. 5.12³ =
  6. 6.29³ =
  7. 7.17³ =
  8. 8.13³ =
  9. 9.58³ =
  10. 10.17³ =
  11. 11.29³ =
  12. 12.91³ =
  13. 13.68³ =
  14. 14.41³ =
  15. 15.21³ =
  16. 16.73³ =
  17. 17.51³ =
  18. 18.12³ =
  19. 19.33³ =
  20. 20.79³ =
  21. 21.44³ =
  22. 22.31³ =
  23. 23.21³ =
  24. 24.89³ =
  25. 25.41³ =
  26. 26.13³ =
  27. 27.74³ =
  28. 28.32³ =
  29. 29.35³ =
  30. 30.42³ =
  31. 31.14³ =
  32. 32.55³ =
  33. 33.75³ =
  34. 34.41³ =
  35. 35.22³ =
  36. 36.34³ =
  37. 37.77³ =
  38. 38.21³ =
  39. 39.81³ =
  40. 40.48³ =

Answer key

  1. 35937
  2. 357911
  3. 328509
  4. 970299
  5. 1728
  6. 24389
  7. 4913
  8. 2197
  9. 195112
  10. 4913
  11. 24389
  12. 753571
  13. 314432
  14. 68921
  15. 9261
  16. 389017
  17. 132651
  18. 1728
  19. 35937
  20. 493039
  21. 85184
  22. 29791
  23. 9261
  24. 704969
  25. 68921
  26. 2197
  27. 405224
  28. 32768
  29. 42875
  30. 74088
  31. 2744
  32. 166375
  33. 421875
  34. 68921
  35. 10648
  36. 39304
  37. 456533
  38. 9261
  39. 531441
  40. 110592

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