The little sloppy saw 340 as 430 when doing addition calculations, and the calculated result is 750, so what should be the correct calculation result?
小马虎在做加法计算时把340看成了430，算出结果是750，那么正确的计算结果应该是多少？
<gadget id="calculator">750 - 430</gadget>
<output>320</output>

<gadget id="calculator">320 + 340</gadget>
<output>660</output>

<result>660</result>