The sum of two numbers is 616, and the last digit of one of them is 0. If the 0 is removed, it is the same as the other number. What is the difference between these two numbers.
两个数之和是616，其中一个数的最后一位数字是0，如果把0去掉，就与另一个数相同．这两个数的差是多少．
<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">616 / 11</gadget>
<output>56</output>

<gadget id="calculator">56 * 10</gadget>
<output>560</output>

<gadget id="calculator">560 - 56</gadget>
<output>504</output>

<result>504</result>