Xiao Ming's home is 115 meters away from the school. How many meters does he have to walk to go to school in the morning and to go home after school in the afternoon?
小明家离学校115米．他上午去学校上学和下午放学回家一共要走多少米？
<gadget id="calculator">115 * 2</gadget>
<output>230</output>

<result>230</result>