642+24/12, if you want to calculate 642+24 first, what should be the calculation formula?
642+24/12，如果要先算642+24，算式应列成多少．
<gadget id="calculator">624 + 24</gadget>
<output>648</output>

<gadget id="calculator">648 / 12</gadget>
<output>54</output>

<result>54</result>