There are 235 skipping ropes in the sports room. 87 were lent out in the morning and 104 in the afternoon. How many jump ropes are left?
体育室有235根跳绳．上午借出87根，下午借出104根．还剩多少根跳绳？
<gadget id="calculator">235 - 87 - 104</gadget>
<output>44</output>

<result>44</result>