Xiaoli and Xiaoming set off from home at the same time and walked towards each other. After 4 minutes, they met at the school gate. Xiao Ming walks 60 meters per minute, and Xiao Li walks 70 meters per minute. How many meters are there between them?
小丽和小明同时从家出发，相对而行，经过4分钟两人正好在学校门口相遇．小明每分钟走60米，小丽每分钟走70米．他们两家相距多少米？
<gadget id="calculator">60 + 70</gadget>
<output>130</output>

<gadget id="calculator">130 * 4</gadget>
<output>520</output>

<result>520</result>