The average length of Xiao Ming's step is 40 cm. He walked a total of 195 steps from home to school. How many meters did he walk to school in one day?
小明走一步的平均长度是40厘米，他从家到学校共走了195步，他一天上学一共走了多少米？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">195 * (2/5) * 4</gadget>
<output>312</output>

<result>312</result>