In a subtraction formula, the sum of the minuend, the subtrahend and the difference is 760, and the known subtrahend is 200, what is the difference.
在一道减法算式中，被减数、减数、差的和是760，已知减数是200，差是多少．
<gadget id="calculator">760 / 2</gadget>
<output>380</output>

<gadget id="calculator">380 - 200</gadget>
<output>180</output>

<result>180</result>