Which of the following formulas cannot be used to check 625-340=285
下列算式中，不能用来验算625-340=285的是多少
<gadget id="calculator">625 - 340</gadget>
<output>285</output>

<gadget id="calculator">625 - 285</gadget>
<output>340</output>

<gadget id="calculator">340 + 285 + 340</gadget>
<output>965</output>

<result>965</result>