What is the comprehensive formula composed of 56/7=8, 8+62=70, 100-70=30
由56/7=8，8+62=70，100-70=30组成的综合算式是多少
<gadget id="calculator">56 / 7</gadget>
<output>8</output>

<gadget id="calculator">8 + 62</gadget>
<output>70</output>

<gadget id="calculator">100 - 70</gadget>
<output>30</output>

<result>30</result>