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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 707 · 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. 1.23³ =
  2. 2.87³ =
  3. 3.76³ =
  4. 4.28³ =
  5. 5.32³ =
  6. 6.64³ =
  7. 7.94³ =
  8. 8.13³ =
  9. 9.56³ =
  10. 10.51³ =
  11. 11.68³ =
  12. 12.89³ =
  13. 13.21³ =
  14. 14.81³ =
  15. 15.97³ =
  16. 16.71³ =
  17. 17.26³ =
  18. 18.51³ =
  19. 19.26³ =
  20. 20.17³ =
  21. 21.67³ =
  22. 22.45³ =
  23. 23.32³ =
  24. 24.31³ =
  25. 25.61³ =
  26. 26.18³ =
  27. 27.65³ =
  28. 28.96³ =
  29. 29.22³ =
  30. 30.21³ =
  31. 31.22³ =
  32. 32.64³ =
  33. 33.39³ =
  34. 34.84³ =
  35. 35.74³ =
  36. 36.81³ =
  37. 37.48³ =
  38. 38.74³ =
  39. 39.26³ =
  40. 40.53³ =

Answer key

  1. 12167
  2. 658503
  3. 438976
  4. 21952
  5. 32768
  6. 262144
  7. 830584
  8. 2197
  9. 175616
  10. 132651
  11. 314432
  12. 704969
  13. 9261
  14. 531441
  15. 912673
  16. 357911
  17. 17576
  18. 132651
  19. 17576
  20. 4913
  21. 300763
  22. 91125
  23. 32768
  24. 29791
  25. 226981
  26. 5832
  27. 274625
  28. 884736
  29. 10648
  30. 9261
  31. 10648
  32. 262144
  33. 59319
  34. 592704
  35. 405224
  36. 531441
  37. 110592
  38. 405224
  39. 17576
  40. 148877

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