269-(72×23÷36+23),的简便方法269-(72×23÷36+23)=269-(72÷36×23+23)=269-(2×23+23)=269-（2+1）×23=269-3×23=269-69=200
269-（72×23÷36+23）＝269-（72÷36×23+23）＝269-（2×23+23）＝269-69＝200
