Pg.96/ ex. 1 a,d Repede Va Rog Ma Abonez Si Dau Si Coroana!!

1. a) 4,2+1,3×6=
=4,2+7,8=12
d) 3/2+5:(12/5+0,(3))=
=3/2+5:(12/5+3/9)=
=3/2+5:(12/5+1/3)=
=3/2+5:(36/15+5/15)=
=3/2+5:41/15=
=3/2+5×15/41=
=3/2+75/41=
=123/82+150/82=273/82