How much is it to list 58-37=21, 567/21=27 into a comprehensive formula.
把58-37=21，567/21=27列成一个综合算式是多少．
<gadget id="calculator">58 - 37</gadget>
<output>21</output>

<gadget id="calculator">567 / 21</gadget>
<output>27</output>

<result>27</result>