There are 258 iron trees and 175 poplars in the campus, and the number of banyan trees is 83 fewer than the total number of iron trees and poplars. How many banyan trees are there?
校园里有258棵铁树，175棵杨树，榕树的棵数比铁树和杨树棵数的总数少83棵．榕树有多少棵？
<gadget id="calculator">175 - 83</gadget>
<output>92</output>

<gadget id="calculator">258 + 92</gadget>
<output>350</output>

<result>350</result>