A stationery store sold 622 exercise books in the morning and 279 in the afternoon. How many exercise books were sold in total?
一个文化用品店上午卖出练习本622本，下午卖出279本，这时一共卖出练习本多少本？
<gadget id="calculator">622 + 279</gadget>
<output>901</output>

<result>901</result>