If a rope is 10 meters long and is cut into a length of 2 meters, how many times does it need to be cut?
一条绳子长10米，剪成2米长的一段，需要剪多少次．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<result>4</result>