Naughty miscalculated 25*(□+4) as 25*□+4, how much is the difference between the number he calculated and the correct answer?
淘气把25*(□+4)错算成25*□+4，他算出的得数与正确的答案相差多少．
<gadget id="calculator">25 * 4</gadget>
<output>100</output>

<gadget id="calculator">100 - 4</gadget>
<output>96</output>

<result>96</result>