Huanhuan miscalculated (5+□)*24 as 5+□*24, how much is the difference between his calculated result and the correct result.
欢欢把(5+□)*24错算成5+□*24，他算出的结果与正确结果相差多少．
<gadget id="calculator">5 * 24</gadget>
<output>120</output>

<gadget id="calculator">120 - 5</gadget>
<output>115</output>

<result>115</result>