What is the comprehensive formula of 818-18=800, 45+27=72, 72/4=18
把818-18=800，45+27=72，72/4=18写成综合算式是多少
<gadget id="calculator">45 + 27</gadget>
<output>72</output>

<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<gadget id="calculator">818 - 18</gadget>
<output>800</output>

<result>800</result>