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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 419 · 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. 1.21³ =
  2. 2.54³ =
  3. 3.22³ =
  4. 4.79³ =
  5. 5.95³ =
  6. 6.83³ =
  7. 7.91³ =
  8. 8.37³ =
  9. 9.61³ =
  10. 10.44³ =
  11. 11.14³ =
  12. 12.33³ =
  13. 13.99³ =
  14. 14.71³ =
  15. 15.31³ =
  16. 16.42³ =
  17. 17.24³ =
  18. 18.53³ =
  19. 19.67³ =
  20. 20.66³ =
  21. 21.36³ =
  22. 22.52³ =
  23. 23.42³ =
  24. 24.73³ =
  25. 25.69³ =
  26. 26.65³ =
  27. 27.97³ =
  28. 28.23³ =
  29. 29.39³ =
  30. 30.49³ =
  31. 31.73³ =
  32. 32.51³ =
  33. 33.36³ =
  34. 34.31³ =
  35. 35.78³ =
  36. 36.13³ =
  37. 37.84³ =
  38. 38.29³ =
  39. 39.31³ =
  40. 40.92³ =

Answer key

  1. 9261
  2. 157464
  3. 10648
  4. 493039
  5. 857375
  6. 571787
  7. 753571
  8. 50653
  9. 226981
  10. 85184
  11. 2744
  12. 35937
  13. 970299
  14. 357911
  15. 29791
  16. 74088
  17. 13824
  18. 148877
  19. 300763
  20. 287496
  21. 46656
  22. 140608
  23. 74088
  24. 389017
  25. 328509
  26. 274625
  27. 912673
  28. 12167
  29. 59319
  30. 117649
  31. 389017
  32. 132651
  33. 46656
  34. 29791
  35. 474552
  36. 2197
  37. 592704
  38. 24389
  39. 29791
  40. 778688

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