[tex]\displaystyle\bf\\Se~da\!:\\64+16=10\\128+32=12\\8+64=9\\\\Se~cere!:\\256+128=??\\\\Observam~ca~termenii~care~se~aduna~sunt~puteri~ale~lui~2.\\\\Rescriem~sumele:\\2^6+2^4=10\\2^7+2^5=12\\2^3+2^6=9\\\\Observam~ca~"suma"~este~obtinuta~prin~adunarea~exponentilor.\\\\Rezulta~ca:\\\\256+128=2^8+2^7=\boxed{\bf8+7=15}[/tex]
