There are 5 rows of apple trees, 8 in each row, and 2 more rows are planted, how many are there in total now?
有5行苹果树，每行8棵，又栽了2行，现在一共有多少棵．
<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">8 * 7</gadget>
<output>56</output>

<result>56</result>