va rog frumos urgent pt maine

(63-27):4+(81-18):9=36:4+63:9=9+7=16
64:2+5x6-72:4x2-25+14=32+30-18-25+14=62-18-25+14=44-25+14=19+14=33
(56:8+9x5+33:3):9=(7+45+11):9=(52+11):9=63:9=7
28:4x3+25x36+(752-8x8x2)=7x3+900+(752-16x2)=21+900+(752-32)=921+720=1640