There are 125 pear trees in the orchard, and the number of apple trees is three times that of pear trees. How many of these two kinds of trees are there in total?
果园里有梨树125棵，苹果树的棵数是梨树的3倍，这两种树一共有多少棵？
<gadget id="calculator">125 * 3</gadget>
<output>375</output>

<gadget id="calculator">375 + 125</gadget>
<output>500</output>

<result>500</result>