Xiao Ding wrongly wrote (10+★)*25 as 10+★*25, how much is the difference between his calculated result and the correct result?
小丁把(10+★)*25错写成10+★*25，他算出的结果与正确的结果相差多少？
<gadget id="calculator">250 - 10</gadget>
<output>240</output>

<result>240</result>