Departure from home at 8:00am on Sunday to grandma's house by car and arrive at 10:00am. The car travels 70 kilometers per hour, how many kilometers is Mingming's house from grandma's house?
星期天明明上午8时从家出发乘车到奶奶家，上午10时到达．汽车每小时行70千米，明明家距奶奶家多少千米？
<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">70 * 2</gadget>
<output>140</output>

<result>140</result>