👤

calculeaza :
10+11+...+99

10+20+...90


Răspuns :

450.... mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmnnmmnmmmmmmmmnnmmmmmmmnmnnmnnnnmmmmmmmmmmmmmmmmmmmmmmmmmnnnnnnnnmmmmmmmmmmmmmmmmmmmnmmmnnmmscriti in com cati de ,n, ati gasit