Răspunsuri

2014-09-21T10:42:55+03:00
2014-09-21T10:46:27+03:00
A)0,25+1/2=25/100+1/2=1/4+1/2=1/4+2/4=3/4
b)-5x(+6)+(-4)x(-8)=
-30+32=2