There are 1800 pear trees, apple trees and peach trees in the orchard, of which there are 325 pear trees, and 260 more apple trees than pear trees. How many peach trees are there?
果园里有梨树、苹果树和桃树共1800棵，其中梨树有325棵，苹果树比梨树多260棵．桃树有多少棵？
<gadget id="calculator">325 + 260</gadget>
<output>585</output>

<gadget id="calculator">1_800 - 325 - 585</gadget>
<output>890</output>

<result>890</result>