The average of two numbers is 98, one of them is 96, what is the other number.
两个数的平均数是98，其中一个数是96，另一个数是多少．
<gadget id="calculator">98 * 2</gadget>
<output>196</output>

<gadget id="calculator">196 - 96</gadget>
<output>100</output>

<result>100</result>