A car tire with a radius of 0.5 meters rotates 100 times per minute. After 10 minutes, how many meters has the tire traveled?
一个半径为0.5米的汽车轮胎，每分钟转100圈，经过10分钟，问轮胎走过的路程是多少米？
<gadget id="calculator">0.5 * 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1 * 100 * 10</gadget>
<output>3_140</output>

<result>3_140</result>