There are currently 8 consecutive numbered observatory tickets, and you need to get 3 consecutive numbered tickets, how many different ways are there in total?
现有8张连号的天文台参观券，要拿3张连号的券，一共有多少种不同的拿法？
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<result>6</result>