When Ma Xiaohu calculated 6.9 minus a two-digit decimal, he regarded the minus sign as a plus sign, and the result was 11.45. What should be the correct result?
马小虎计算6.9减去一个两位小数时，把减号看成了加号，得到的结果是11.45．正确的结果应是多少？
<gadget id="calculator">11.45 - 6.9</gadget>
<output>4.55</output>

<gadget id="calculator">6.9 - 4.55</gadget>
<output>2.35</output>

<result>2.35</result>