Sara baked 3 trays of cupcakes for her friends. Each tray has 6 cupcakes. If her brothers ate 5 pieces. How many cupcakes are left for Sara and her friends?
Sara baked 3 trays of cupcakes for her friends. Each tray has 6 cupcakes. If her brothers ate 5 pieces. How many cupcakes are left for Sara and her friends?