There are 1800 apple trees in the orchard, which is 1000 fewer than twice as many peach trees. How many peach trees are there?
果园里有苹果树1800棵，比桃树的2倍少1000棵．有桃树多少棵？
<gadget id="calculator">1_800 + 1_000</gadget>
<output>2_800</output>

<gadget id="calculator">2_800 / 2</gadget>
<output>1_400</output>

<result>1_400</result>