In the tree planting activity, the students planted 50 cypress trees, and the pine trees they planted were 8 times that of cypress trees. How many trees were planted in total?
在植树活动中，同学们种了50棵柏树，种的松树是柏树的8倍，一共种了多少棵树？
<gadget id="calculator">50 * 8</gadget>
<output>400</output>

<gadget id="calculator">400 + 50</gadget>
<output>450</output>

<result>450</result>