When Xiao Ming calculated (30+25)*2, he miscalculated as 30+25*2, so how much is the difference from the correct result?
小明在计算(30+25)*2时，错算成了30+25*2，这样与正确结果相差多少
<gadget id="calculator">30 + 25</gadget>
<output>55</output>

<gadget id="calculator">55 * 2</gadget>
<output>110</output>

<gadget id="calculator">25 * 2</gadget>
<output>50</output>

<gadget id="calculator">30 + 50</gadget>
<output>80</output>

<gadget id="calculator">110 - 80</gadget>
<output>30</output>

<result>30</result>