In a subtraction formula, it is known that the sum of the minuend, the subtrahend and the difference is 100, so what is the minuend?
在一道减法算式中，已知被减数、减数与差的和是100，那么被减数是多少？
<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<result>50</result>