There used to be 16 peach trees in the park, but now 4 rows have been planted, with 6 trees in each row. How many peach trees are there in total now?
公园里原来有桃树16棵，现在又种了4排，每排6棵，现在一共有几棵桃树？
<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<gadget id="calculator">24 + 16</gadget>
<output>40</output>

<result>40</result>