课件16张PPT。 Lesson 11 fivetwonine fourseven teneight sixonethreeeleventwelveseventenninetwelvefoureleveneight fivesixthreeonetwoone + two = two + three = three + seven = four + three = five + six = seven + five = eight + two = nine + three = threefivetenseveneleventwelvetentwelveGood bye