There are several step-by-step formulas below, 4535-500=4035; 782-777=5; 4035/5=807, how much is it rewritten into a comprehensive formula.
下面有几个分步式，4535-500=4035；782-777=5；4035/5=807，改写成综合算式是多少．
<gadget id="calculator">4_535 - 550</gadget>
<output>3_985</output>

<gadget id="calculator">782 - 777</gadget>
<output>5</output>

<gadget id="calculator">3_985 / 5</gadget>
<output>797</output>

<result>797</result>