two-digit decimal is rounded to retain an approximate value of 7.0, so how much is the difference between the maximum number and the minimum number of this two-digit decimal.
一个两位小数四舍五入保留近似值是7.0，那么这个两位小数最大数和最小数相差多少．
<gadget id="calculator">7.04 - 6.95</gadget>
<output>0.09</output>

<result>0.09</result>