Xiao Ming's family lives on the fifth floor (there is no garage on the first floor). There are 12 steps on each floor. How many steps does he have to climb every time he goes home?
小明家住在五楼(一层没有车库)，每层楼有12个台阶，他每次回家要上多少个台阶．
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<result>48</result>