Exhibit 11.0 SLADE'S FERRY BANCORP AND SUBSIDIARY COMPUTATION OF PER SHARE EARNINGS (Unaudited) Three months ended Nine months ended September 30, September 30, ------------------------------------------------------- 2003 2002 2003 2002 ------------------------------------------------------- <s> <c> <c> <c> <c> Net Income $ 699,345 $1,250,997 $1,616,861 $2,089,673 ------------------------------------------------------- Average shares outstanding 3,976,557 3,917,902 3,963,167 3,900,580 ------------------------------------------------------- Basic earnings per share $ 0.18 $ 0.32 $ 0.40 $ 0.54 ------------------------------------------------------- Net Income $ 699,345 $1,250,997 $1,616,861 $2,089,673 ------------------------------------------------------- Average shares outstanding 3,976,557 3,917,902 3,963,167 3,900,580 Net effect of dilutive stock options 46,247 26,679 31,344 29,180 ------------------------------------------------------- Adjusted shares outstanding 4,022,804 3,944,581 3,994,511 3,929,760 ------------------------------------------------------- Diluted earnings per share $ 0.17 $ 0.32 $ 0.41 $ 0.53 ------------------------------------------------------- 29