A row of willows is planted along a river bank of 45 meters, and one is planted every 5 meters. How many willows are planted in total?
45米的河边种一行柳树，每隔5米种一棵，一共种多少棵．
<gadget id="calculator">45 / 5</gadget>
<output>9</output>

<gadget id="calculator">9 + 1</gadget>
<output>10</output>

<result>10</result>