When Ma Xiaohu calculated "800-□/5", he did the subtraction first and then the division, and the result was 40. What is the correct number for this question.
马小虎在计算"800-□/5"时，先算减法，后算除法，得到的结果是40．这道题的正确得数是多少．
<gadget id="calculator">40 * 5</gadget>
<output>200</output>

<gadget id="calculator">800 - 200</gadget>
<output>600</output>

<gadget id="calculator">600 / 5</gadget>
<output>120</output>

<gadget id="calculator">800 - 120</gadget>
<output>680</output>

<result>680</result>