In a subtraction formula, the difference between the minuend and the subtrahend is 9.68, the subtrahend is 3.2, what is the minuend
在一道减法算式中，被减数、减数的差是9.68，减数是3.2，被减数是多少
<gadget id="calculator">3.2 + 9.68</gadget>
<output>12.88</output>

<result>12.88</result>