Xiaohong miscalculated "20*(a+5)" into "20a+5", so how much is the difference between the miscalculated number and the correct one?
小红把"20*(a+5)"错算成"20a+5"，这样错算的得数与正确得数相差多少．
<gadget id="calculator">100 - 5</gadget>
<output>95</output>

<result>95</result>