Xiaowei needs 48 floor tiles with an area of 18 square decimeters. If he uses floor tiles with an area of 9 square decimeters, how many tiles will he need?
小伟家用面积是18平方分米的地砖需48块，如果改用面积是9平方分米的地砖，需多少块？
<gadget id="calculator">18 * 48</gadget>
<output>864</output>

<gadget id="calculator">864 / 9</gadget>
<output>96</output>

<result>96</result>