Use the number cards 1, 2, 5, 7, 8, 0 to put out two three-digit numbers, what is the largest difference.
用数卡1、2、5、7、8、0摆出两个三位数，差最大是多少．
<gadget id="calculator">875 - 102</gadget>
<output>773</output>

<result>773</result>