270×0.16=43.2平方米43.2÷(0.3×0.3)=43.2÷0.09=480块
270*0.16/(0.3*0.3)=480(块)
0.16*270/(0.3*0.3=480)
270×0.16=43.2平方米0.3×0.3=0.09平方米43.2÷0.09=480块答:需要480块