When Xiaohai calculates the subtraction, he regards the subtrahend 3.2 as 32, and the result is 48.3. What is the correct number?
小海在计算减法时，把减数3.2看成32，结果得48.3，正确的得数是多少．
<gadget id="calculator">48.3 - 3.2</gadget>
<output>45.1</output>

<gadget id="calculator">32 + 45.1</gadget>
<output>77.1</output>

<result>77.1</result>