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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 878 · 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. 1.77³ =
  2. 2.54³ =
  3. 3.93³ =
  4. 4.47³ =
  5. 5.99³ =
  6. 6.32³ =
  7. 7.16³ =
  8. 8.57³ =
  9. 9.79³ =
  10. 10.23³ =
  11. 11.95³ =
  12. 12.46³ =
  13. 13.96³ =
  14. 14.22³ =
  15. 15.49³ =
  16. 16.91³ =
  17. 17.63³ =
  18. 18.88³ =
  19. 19.83³ =
  20. 20.42³ =
  21. 21.81³ =
  22. 22.28³ =
  23. 23.95³ =
  24. 24.31³ =
  25. 25.68³ =
  26. 26.61³ =
  27. 27.56³ =
  28. 28.43³ =
  29. 29.97³ =
  30. 30.98³ =
  31. 31.13³ =
  32. 32.16³ =
  33. 33.98³ =
  34. 34.88³ =
  35. 35.66³ =
  36. 36.31³ =
  37. 37.16³ =
  38. 38.67³ =
  39. 39.95³ =
  40. 40.51³ =

Answer key

  1. 456533
  2. 157464
  3. 804357
  4. 103823
  5. 970299
  6. 32768
  7. 4096
  8. 185193
  9. 493039
  10. 12167
  11. 857375
  12. 97336
  13. 884736
  14. 10648
  15. 117649
  16. 753571
  17. 250047
  18. 681472
  19. 571787
  20. 74088
  21. 531441
  22. 21952
  23. 857375
  24. 29791
  25. 314432
  26. 226981
  27. 175616
  28. 79507
  29. 912673
  30. 941192
  31. 2197
  32. 4096
  33. 941192
  34. 681472
  35. 287496
  36. 29791
  37. 4096
  38. 300763
  39. 857375
  40. 132651

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