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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 570 · 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. 1.94³ =
  2. 2.14³ =
  3. 3.75³ =
  4. 4.29³ =
  5. 5.79³ =
  6. 6.33³ =
  7. 7.85³ =
  8. 8.61³ =
  9. 9.77³ =
  10. 10.78³ =
  11. 11.54³ =
  12. 12.52³ =
  13. 13.16³ =
  14. 14.87³ =
  15. 15.51³ =
  16. 16.81³ =
  17. 17.36³ =
  18. 18.25³ =
  19. 19.49³ =
  20. 20.42³ =
  21. 21.14³ =
  22. 22.25³ =
  23. 23.63³ =
  24. 24.94³ =
  25. 25.32³ =
  26. 26.34³ =
  27. 27.31³ =
  28. 28.51³ =
  29. 29.75³ =
  30. 30.12³ =
  31. 31.19³ =
  32. 32.97³ =
  33. 33.13³ =
  34. 34.74³ =
  35. 35.95³ =
  36. 36.75³ =
  37. 37.15³ =
  38. 38.46³ =
  39. 39.52³ =
  40. 40.89³ =

Answer key

  1. 830584
  2. 2744
  3. 421875
  4. 24389
  5. 493039
  6. 35937
  7. 614125
  8. 226981
  9. 456533
  10. 474552
  11. 157464
  12. 140608
  13. 4096
  14. 658503
  15. 132651
  16. 531441
  17. 46656
  18. 15625
  19. 117649
  20. 74088
  21. 2744
  22. 15625
  23. 250047
  24. 830584
  25. 32768
  26. 39304
  27. 29791
  28. 132651
  29. 421875
  30. 1728
  31. 6859
  32. 912673
  33. 2197
  34. 405224
  35. 857375
  36. 421875
  37. 3375
  38. 97336
  39. 140608
  40. 704969

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