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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 405 · 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. 1.31³ =
  2. 2.31³ =
  3. 3.45³ =
  4. 4.13³ =
  5. 5.82³ =
  6. 6.42³ =
  7. 7.57³ =
  8. 8.77³ =
  9. 9.61³ =
  10. 10.53³ =
  11. 11.36³ =
  12. 12.26³ =
  13. 13.84³ =
  14. 14.19³ =
  15. 15.19³ =
  16. 16.55³ =
  17. 17.77³ =
  18. 18.87³ =
  19. 19.18³ =
  20. 20.98³ =
  21. 21.72³ =
  22. 22.48³ =
  23. 23.36³ =
  24. 24.22³ =
  25. 25.11³ =
  26. 26.39³ =
  27. 27.36³ =
  28. 28.71³ =
  29. 29.77³ =
  30. 30.11³ =
  31. 31.48³ =
  32. 32.27³ =
  33. 33.29³ =
  34. 34.95³ =
  35. 35.39³ =
  36. 36.64³ =
  37. 37.12³ =
  38. 38.83³ =
  39. 39.53³ =
  40. 40.96³ =

Answer key

  1. 29791
  2. 29791
  3. 91125
  4. 2197
  5. 551368
  6. 74088
  7. 185193
  8. 456533
  9. 226981
  10. 148877
  11. 46656
  12. 17576
  13. 592704
  14. 6859
  15. 6859
  16. 166375
  17. 456533
  18. 658503
  19. 5832
  20. 941192
  21. 373248
  22. 110592
  23. 46656
  24. 10648
  25. 1331
  26. 59319
  27. 46656
  28. 357911
  29. 456533
  30. 1331
  31. 110592
  32. 19683
  33. 24389
  34. 857375
  35. 59319
  36. 262144
  37. 1728
  38. 571787
  39. 148877
  40. 884736

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