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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 781 · 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. 1.53³ =
  2. 2.12³ =
  3. 3.77³ =
  4. 4.67³ =
  5. 5.31³ =
  6. 6.81³ =
  7. 7.52³ =
  8. 8.48³ =
  9. 9.87³ =
  10. 10.13³ =
  11. 11.11³ =
  12. 12.98³ =
  13. 13.51³ =
  14. 14.21³ =
  15. 15.53³ =
  16. 16.39³ =
  17. 17.81³ =
  18. 18.49³ =
  19. 19.63³ =
  20. 20.88³ =
  21. 21.14³ =
  22. 22.71³ =
  23. 23.12³ =
  24. 24.55³ =
  25. 25.51³ =
  26. 26.14³ =
  27. 27.63³ =
  28. 28.14³ =
  29. 29.69³ =
  30. 30.81³ =
  31. 31.23³ =
  32. 32.43³ =
  33. 33.53³ =
  34. 34.72³ =
  35. 35.99³ =
  36. 36.69³ =
  37. 37.72³ =
  38. 38.28³ =
  39. 39.21³ =
  40. 40.95³ =

Answer key

  1. 148877
  2. 1728
  3. 456533
  4. 300763
  5. 29791
  6. 531441
  7. 140608
  8. 110592
  9. 658503
  10. 2197
  11. 1331
  12. 941192
  13. 132651
  14. 9261
  15. 148877
  16. 59319
  17. 531441
  18. 117649
  19. 250047
  20. 681472
  21. 2744
  22. 357911
  23. 1728
  24. 166375
  25. 132651
  26. 2744
  27. 250047
  28. 2744
  29. 328509
  30. 531441
  31. 12167
  32. 79507
  33. 148877
  34. 373248
  35. 970299
  36. 328509
  37. 373248
  38. 21952
  39. 9261
  40. 857375

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