Check the calculation 472-328=144, which of the following checking methods is wrong
验算472-328=144，下列验算方法错误的是多少
<gadget id="calculator">472 - 144</gadget>
<output>328</output>

<gadget id="calculator">328 + 144 + 144</gadget>
<output>616</output>

<result>616</result>