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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 266 · 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. 1.15³ =
  2. 2.57³ =
  3. 3.61³ =
  4. 4.28³ =
  5. 5.14³ =
  6. 6.74³ =
  7. 7.91³ =
  8. 8.53³ =
  9. 9.24³ =
  10. 10.96³ =
  11. 11.34³ =
  12. 12.44³ =
  13. 13.21³ =
  14. 14.82³ =
  15. 15.98³ =
  16. 16.47³ =
  17. 17.87³ =
  18. 18.79³ =
  19. 19.78³ =
  20. 20.13³ =
  21. 21.99³ =
  22. 22.13³ =
  23. 23.68³ =
  24. 24.25³ =
  25. 25.21³ =
  26. 26.16³ =
  27. 27.49³ =
  28. 28.25³ =
  29. 29.85³ =
  30. 30.66³ =
  31. 31.32³ =
  32. 32.63³ =
  33. 33.55³ =
  34. 34.61³ =
  35. 35.53³ =
  36. 36.47³ =
  37. 37.79³ =
  38. 38.13³ =
  39. 39.24³ =
  40. 40.17³ =

Answer key

  1. 3375
  2. 185193
  3. 226981
  4. 21952
  5. 2744
  6. 405224
  7. 753571
  8. 148877
  9. 13824
  10. 884736
  11. 39304
  12. 85184
  13. 9261
  14. 551368
  15. 941192
  16. 103823
  17. 658503
  18. 493039
  19. 474552
  20. 2197
  21. 970299
  22. 2197
  23. 314432
  24. 15625
  25. 9261
  26. 4096
  27. 117649
  28. 15625
  29. 614125
  30. 287496
  31. 32768
  32. 250047
  33. 166375
  34. 226981
  35. 148877
  36. 103823
  37. 493039
  38. 2197
  39. 13824
  40. 4913

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