When Xiaoqing was doing decimal subtraction, she regarded the subtrahend 4.8 as 48, and the result was 2.2. What should be the correct number?
小晴在做小数减法时，把减数4.8看成了48，结果得2.2．正确的得数应该是多少？
<gadget id="calculator">48 - 4.8</gadget>
<output>43.2</output>

<gadget id="calculator">2.2 + 43.2</gadget>
<output>45.4</output>

<result>45.4</result>