2.3•(-1.55)=
2.3•(-1.55)=
http://www.google.com/#pq=2.3%E2%80%A2(-1.55)&hl=en&sugexp=bvec&cp=11&gs_id=17&xhr=t&q=2.3+*+-1.55&pf=p&sclient=psy-ab&source=hp&pbx=1&oq=2.3+*+-1.55&aq=f&aqi=&a
http://www.google.com/#pq=2.3%E2%80%A2(-1.55)&hl=en&sugexp=bvec&cp=11&gs_id=17&xhr=t&q=2.3+*+-1.55&pf=p&sclient=psy-ab&source=hp&pbx=1&oq=2.3+*+-1.55&aq=f&aqi=&a