The fifth grade students planted trees, the first class planted 40 trees, 32 trees less than twice the number planted by the second class, how many trees were planted by the second class? (Solution of column equation)
五年级同学种树，一班种40棵，比二班种的2倍少32棵，二班种多少棵？(列方程解)
<gadget id="calculator">32 + 40</gadget>
<output>72</output>

<gadget id="calculator">72 / 2</gadget>
<output>36</output>

<result>36</result>