The canteen shipped 520 kilograms of flour. 162 kilograms were used in the morning and 154 kilograms in the afternoon, how many kilograms are left?
食堂运来520千克面粉．上午用去162千克，下午用去154千克，还剩多少千克？
<gadget id="calculator">162 + 154</gadget>
<output>316</output>

<gadget id="calculator">520 - 316</gadget>
<output>204</output>

<result>204</result>