When Xiaojun calculated 20*(□+5), he miscalculated as 20*□+5, and the result he got was much less than the correct result.
小军在计算20*(□+5)时，错算成20*□+5，他得到的结果比正确结果少多少．
<gadget id="calculator">20 * 5</gadget>
<output>100</output>

<gadget id="calculator">100 - 5</gadget>
<output>95</output>

<result>95</result>