In a decimal subtraction, the difference is 6.28, if the subtrahend is reduced by 0.8, what is the difference now
在一道小数减法中，差是6.28，如果减数减少0.8，那现在的差是多少
<gadget id="calculator">6.28 + 0.8</gadget>
<output>7.08</output>

<result>7.08</result>