According to 100/25=4, 4+170=174, 320-174=146, what is a comprehensive formula?
根据100/25=4，4+170=174，320-174=146列出一道综合算式是多少．
<gadget id="calculator">100 / 25</gadget>
<output>4</output>

<gadget id="calculator">4 + 170</gadget>
<output>174</output>

<gadget id="calculator">320 - 174</gadget>
<output>146</output>

<result>146</result>