In a subtraction formula, the difference is 7.25. If the minuend increases by 0.5 and the subtrahend decreases by 0.5, what is the difference now?
在一道减法算式中，差是7.25，如果被减数增加0.5，减数减少0.5，则现在的差是多少．
<gadget id="calculator">7.25 + 0.5 + 0.5</gadget>
<output>8.25</output>

<result>8.25</result>