LectureExercisesQuestionAnswerthe numberel númerozerocerooneunotwodosthreetresfourcuatrofivecincosixseissevensieteeightochoninenuevetendiezelevenoncetwelvedocethirteentrecefourteencatorcefifteenquinceone bookun libroone houseuna casatwo booksdos librosthree big housestres casas grandesPractice this lesson