05 Íàéäèòå çíà÷åíèå âûðàæåíèÿ .
ÐÅØÅÍÈÅ
(6+1/2-.9)/(1/10)
http://www.wolframalpha.com/input/?i=%286%2B1%2F2-.9%29%2F%281%2F10%29
=
ÎÒÂÅÒ
56