The canteen bought 280 bags of rice, ate 235 bags, and bought another 218 bags. How many bags of rice are there in the canteen now?
食堂买来大米280袋，吃了235袋，又买来218袋．现在食堂有大米多少袋？
<gadget id="calculator">280 - 235</gadget>
<output>45</output>

<gadget id="calculator">45 + 218</gadget>
<output>263</output>

<result>263</result>