一种瓷砖每平方米7.5元，丽丽家装修16.4平方米的卧室，买瓷砖要用多少元？;Z5F1x+Q;F/W+z-z1z*D(H2w
算式：提示4m.M(U;d3I9}/u.];Z5F1x+Q;F/W+z-z1z*D(H2w
答：买瓷砖要用多:Y6y2m:b7m.Q*@元。;Z5F1x+Q;F/W+z-z1z*D(H2w