What is the same formula as the result of 3970*0
与3970*0结果相同的算式是多少
<gadget id="calculator">0 - 0 - 3_970</gadget>
<output>-3_970</output>

<gadget id="calculator">0 - 0</gadget>
<output>0</output>

<gadget id="calculator">3_970 + (-3_970) + 0</gadget>
<output>0</output>

<result>0</result>