Tenho mais interrogações do que certezas.
https://www.thoughtco.com/math-tricks-that-will-blow-your-mind-4154742?utm_campaign=wilat&utm_medium=email&utm_source=cn_nl&utm_content=21300508&utm_term=
https://www.thoughtco.com/most-popular-languages-1434469?utm_campaign=wilat&utm_medium=email&utm_source=cn_nl&utm_content=21274736&utm_term=