There are 128 peach trees in the orchard, and the number of pear trees is three times that of peach trees. How many peach trees and pear trees are there altogether?
果园里有桃树128棵，梨树的棵树是桃树的3倍．桃树和梨树一共有多少棵？
<gadget id="calculator">128 * 3</gadget>
<output>384</output>

<gadget id="calculator">384 + 128</gadget>
<output>512</output>

<result>512</result>