There are 5 units in a building, each unit has 6 floors, and 4 households live in each floor, how many households can live in this building.
一幢楼房有5个单元，每个单元有6层，每层住4户，这幢楼一共可以住多少户．
<gadget id="calculator">5 * 6 * 4</gadget>
<output>120</output>

<result>120</result>