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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 615 · 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. 1.11³ =
  2. 2.22³ =
  3. 3.17³ =
  4. 4.29³ =
  5. 5.33³ =
  6. 6.31³ =
  7. 7.25³ =
  8. 8.15³ =
  9. 9.96³ =
  10. 10.51³ =
  11. 11.85³ =
  12. 12.85³ =
  13. 13.37³ =
  14. 14.18³ =
  15. 15.28³ =
  16. 16.71³ =
  17. 17.31³ =
  18. 18.59³ =
  19. 19.54³ =
  20. 20.37³ =
  21. 21.61³ =
  22. 22.19³ =
  23. 23.63³ =
  24. 24.82³ =
  25. 25.73³ =
  26. 26.44³ =
  27. 27.81³ =
  28. 28.47³ =
  29. 29.56³ =
  30. 30.58³ =
  31. 31.44³ =
  32. 32.46³ =
  33. 33.24³ =
  34. 34.95³ =
  35. 35.39³ =
  36. 36.98³ =
  37. 37.53³ =
  38. 38.63³ =
  39. 39.66³ =
  40. 40.11³ =

Answer key

  1. 1331
  2. 10648
  3. 4913
  4. 24389
  5. 35937
  6. 29791
  7. 15625
  8. 3375
  9. 884736
  10. 132651
  11. 614125
  12. 614125
  13. 50653
  14. 5832
  15. 21952
  16. 357911
  17. 29791
  18. 205379
  19. 157464
  20. 50653
  21. 226981
  22. 6859
  23. 250047
  24. 551368
  25. 389017
  26. 85184
  27. 531441
  28. 103823
  29. 175616
  30. 195112
  31. 85184
  32. 97336
  33. 13824
  34. 857375
  35. 59319
  36. 941192
  37. 148877
  38. 250047
  39. 287496
  40. 1331

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