There are 60 apple trees and pear trees in the orchard, among which there are x pear trees, how many more apple trees than pear trees?
果园中苹果树和梨树共60棵，其中梨树有x棵，苹果树比梨树多多少棵．
<gadget id="calculator">60 - 2</gadget>
<output>58</output>

<result>58</result>