A road is 440 meters long, and a tree is planted every 8 meters on both sides of the road. How many trees are planted in total?
一条马路长440米，在路的两旁每隔8米种一棵树，共种多少棵树．
<gadget id="calculator">440 / 8</gadget>
<output>55</output>

<gadget id="calculator">55 + 1</gadget>
<output>56</output>

<gadget id="calculator">56 * 2</gadget>
<output>112</output>

<result>112</result>