Uncle Zhao bought 6 boxes of ceramic tiles for 510 yuan to decorate the kitchen, and the result was 2 boxes short. How much money does he have to prepare to buy tiles?
赵叔叔用510元买6箱瓷砖装饰厨房，结果还差2箱．他还要准备多少钱去买瓷砖？
<gadget id="calculator">510 / 6</gadget>
<output>85</output>

<gadget id="calculator">85 * 2</gadget>
<output>170</output>

<result>170</result>