The minuend is 120, the difference is half of the minuend, what is the minuend?
被减数是120，差是被减数的一半，减数是多少？
<gadget id="calculator">120 / 2</gadget>
<output>60</output>

<gadget id="calculator">120 - 60</gadget>
<output>60</output>

<result>60</result>