A car and a motorcycle start from two places 860 kilometers apart at the same time and drive toward each other. The car travels 45 kilometers per hour and the motorcycle 70 kilometers per hour. What is the distance in kilometers between the two cars after 6 hours?
一辆汽车和一辆摩托车同时从相距860千米的两地出发，相向而行，汽车每小时45千米，摩托车每小时70千米，6小时后两车相距多少千米．
<gadget id="calculator">45 + 70</gadget>
<output>115</output>

<gadget id="calculator">115 * 6</gadget>
<output>690</output>

<gadget id="calculator">860 - 690</gadget>
<output>170</output>

<result>170</result>