When Zhang Hong calculates 40+20*□, he calculates the addition first and then the multiplication, and the result is 480. What is the correct number for this question?
张红在计算40+20*□时，先算加法，后算乘法，得到的结果是480．这道题的正确得数是多少？
<gadget id="calculator">40 + 20</gadget>
<output>60</output>

<gadget id="calculator">480 / 60</gadget>
<output>8</output>

<gadget id="calculator">20 * 8</gadget>
<output>160</output>

<gadget id="calculator">40 + 160</gadget>
<output>200</output>

<result>200</result>