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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 313 · 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. 1.51³ =
  2. 2.97³ =
  3. 3.11³ =
  4. 4.81³ =
  5. 5.59³ =
  6. 6.64³ =
  7. 7.34³ =
  8. 8.31³ =
  9. 9.96³ =
  10. 10.44³ =
  11. 11.12³ =
  12. 12.15³ =
  13. 13.95³ =
  14. 14.18³ =
  15. 15.25³ =
  16. 16.81³ =
  17. 17.89³ =
  18. 18.76³ =
  19. 19.82³ =
  20. 20.73³ =
  21. 21.31³ =
  22. 22.45³ =
  23. 23.29³ =
  24. 24.17³ =
  25. 25.31³ =
  26. 26.41³ =
  27. 27.55³ =
  28. 28.37³ =
  29. 29.29³ =
  30. 30.22³ =
  31. 31.57³ =
  32. 32.99³ =
  33. 33.18³ =
  34. 34.35³ =
  35. 35.95³ =
  36. 36.99³ =
  37. 37.81³ =
  38. 38.55³ =
  39. 39.29³ =
  40. 40.74³ =

Answer key

  1. 132651
  2. 912673
  3. 1331
  4. 531441
  5. 205379
  6. 262144
  7. 39304
  8. 29791
  9. 884736
  10. 85184
  11. 1728
  12. 3375
  13. 857375
  14. 5832
  15. 15625
  16. 531441
  17. 704969
  18. 438976
  19. 551368
  20. 389017
  21. 29791
  22. 91125
  23. 24389
  24. 4913
  25. 29791
  26. 68921
  27. 166375
  28. 50653
  29. 24389
  30. 10648
  31. 185193
  32. 970299
  33. 5832
  34. 42875
  35. 857375
  36. 970299
  37. 531441
  38. 166375
  39. 24389
  40. 405224

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