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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 150 · 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. 1.39³ =
  2. 2.19³ =
  3. 3.23³ =
  4. 4.41³ =
  5. 5.26³ =
  6. 6.91³ =
  7. 7.17³ =
  8. 8.37³ =
  9. 9.57³ =
  10. 10.89³ =
  11. 11.95³ =
  12. 12.68³ =
  13. 13.85³ =
  14. 14.56³ =
  15. 15.84³ =
  16. 16.14³ =
  17. 17.81³ =
  18. 18.31³ =
  19. 19.31³ =
  20. 20.26³ =
  21. 21.32³ =
  22. 22.36³ =
  23. 23.71³ =
  24. 24.99³ =
  25. 25.79³ =
  26. 26.87³ =
  27. 27.77³ =
  28. 28.29³ =
  29. 29.54³ =
  30. 30.91³ =
  31. 31.82³ =
  32. 32.39³ =
  33. 33.62³ =
  34. 34.78³ =
  35. 35.72³ =
  36. 36.72³ =
  37. 37.69³ =
  38. 38.14³ =
  39. 39.63³ =
  40. 40.79³ =

Answer key

  1. 59319
  2. 6859
  3. 12167
  4. 68921
  5. 17576
  6. 753571
  7. 4913
  8. 50653
  9. 185193
  10. 704969
  11. 857375
  12. 314432
  13. 614125
  14. 175616
  15. 592704
  16. 2744
  17. 531441
  18. 29791
  19. 29791
  20. 17576
  21. 32768
  22. 46656
  23. 357911
  24. 970299
  25. 493039
  26. 658503
  27. 456533
  28. 24389
  29. 157464
  30. 753571
  31. 551368
  32. 59319
  33. 238328
  34. 474552
  35. 373248
  36. 373248
  37. 328509
  38. 2744
  39. 250047
  40. 493039

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