When Fatty calculated (5+□)*16, he miscalculated as 5+□*16, how much difference between the result he calculated and the correct result.
小胖在计算(5+□)*16时，错算成5+□*16，他算出的结果与正确结果相差多少．
<gadget id="calculator">80 - 5</gadget>
<output>75</output>

<result>75</result>