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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 165 · 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. 1.64³ =
  2. 2.59³ =
  3. 3.83³ =
  4. 4.14³ =
  5. 5.71³ =
  6. 6.55³ =
  7. 7.51³ =
  8. 8.71³ =
  9. 9.87³ =
  10. 10.34³ =
  11. 11.78³ =
  12. 12.87³ =
  13. 13.15³ =
  14. 14.34³ =
  15. 15.94³ =
  16. 16.25³ =
  17. 17.22³ =
  18. 18.76³ =
  19. 19.24³ =
  20. 20.15³ =
  21. 21.95³ =
  22. 22.59³ =
  23. 23.82³ =
  24. 24.11³ =
  25. 25.62³ =
  26. 26.32³ =
  27. 27.35³ =
  28. 28.68³ =
  29. 29.85³ =
  30. 30.28³ =
  31. 31.12³ =
  32. 32.52³ =
  33. 33.96³ =
  34. 34.94³ =
  35. 35.79³ =
  36. 36.28³ =
  37. 37.31³ =
  38. 38.67³ =
  39. 39.51³ =
  40. 40.23³ =

Answer key

  1. 262144
  2. 205379
  3. 571787
  4. 2744
  5. 357911
  6. 166375
  7. 132651
  8. 357911
  9. 658503
  10. 39304
  11. 474552
  12. 658503
  13. 3375
  14. 39304
  15. 830584
  16. 15625
  17. 10648
  18. 438976
  19. 13824
  20. 3375
  21. 857375
  22. 205379
  23. 551368
  24. 1331
  25. 238328
  26. 32768
  27. 42875
  28. 314432
  29. 614125
  30. 21952
  31. 1728
  32. 140608
  33. 884736
  34. 830584
  35. 493039
  36. 21952
  37. 29791
  38. 300763
  39. 132651
  40. 12167

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