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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 257 · 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. 2.56³ =
  3. 3.88³ =
  4. 4.42³ =
  5. 5.81³ =
  6. 6.89³ =
  7. 7.58³ =
  8. 8.57³ =
  9. 9.44³ =
  10. 10.81³ =
  11. 11.25³ =
  12. 12.85³ =
  13. 13.19³ =
  14. 14.53³ =
  15. 15.85³ =
  16. 16.72³ =
  17. 17.31³ =
  18. 18.63³ =
  19. 19.96³ =
  20. 20.11³ =
  21. 21.51³ =
  22. 22.38³ =
  23. 23.23³ =
  24. 24.85³ =
  25. 25.32³ =
  26. 26.55³ =
  27. 27.14³ =
  28. 28.25³ =
  29. 29.79³ =
  30. 30.99³ =
  31. 31.34³ =
  32. 32.87³ =
  33. 33.84³ =
  34. 34.65³ =
  35. 35.37³ =
  36. 36.89³ =
  37. 37.79³ =
  38. 38.81³ =
  39. 39.18³ =
  40. 40.77³ =

Answer key

  1. 12167
  2. 175616
  3. 681472
  4. 74088
  5. 531441
  6. 704969
  7. 195112
  8. 185193
  9. 85184
  10. 531441
  11. 15625
  12. 614125
  13. 6859
  14. 148877
  15. 614125
  16. 373248
  17. 29791
  18. 250047
  19. 884736
  20. 1331
  21. 132651
  22. 54872
  23. 12167
  24. 614125
  25. 32768
  26. 166375
  27. 2744
  28. 15625
  29. 493039
  30. 970299
  31. 39304
  32. 658503
  33. 592704
  34. 274625
  35. 50653
  36. 704969
  37. 493039
  38. 531441
  39. 5832
  40. 456533

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