500 boxes of apples will be pulled by 8 trucks. The first 7 cars each pull 63 boxes, how many boxes of apples is the last car?
500箱苹果要用8辆卡车拉完．前7辆车各拉63箱，最后一辆车多少箱苹果？
<gadget id="calculator">63 * 7</gadget>
<output>441</output>

<gadget id="calculator">500 - 441</gadget>
<output>59</output>

<result>59</result>