Check the calculation 375-186=189, how many of the following methods are wrong
验算375-186=189，下列方法错误的是多少
<gadget id="calculator">375 - 186</gadget>
<output>189</output>

<gadget id="calculator">189 + 186 + 189</gadget>
<output>564</output>

<result>564</result>