The students visited the airport. There were 358 students from the first grade, and 64 fewer students from the second grade. How many people from the two grades went there?
同学们去机场参观，一年级去了358人，二年级去的人数比一年级少64人，两个年级一共去了多少人？
<gadget id="calculator">358 - 64</gadget>
<output>294</output>

<gadget id="calculator">358 + 294</gadget>
<output>652</output>

<result>652</result>