song:
https://www.youtube.com/watch?v=e0dJWfQHF8Y
audio :
1.https://agendaweb.org/exercises/vocabulary/numbers/audio-100.html
2. https://agendaweb.org/exercises/vocabulary/numbers/numbers-teen-ty
3. https://www.ictgames.com/postAletter/index.html
4. https://www.gamestolearnenglish.com/numbers/
1. https://agendaweb.org/exercises/vocabulary/numbers/numbers-1-100
2. https://www.vocabulary.cl/Games/Numbers_1-100.htm
3. http://www.eflnet.com/vocab/dictionary/numbers_quiz2.php
4. http://scoop.samlaget.no/_upl/skolebok/scoop/numbers-connect-29-109/numbers-connect-29-109.html
5. https://www.englisch-hilfen.de/en/exercises/various/numbers_digits.htm