There are 5 more points in the middle of a line segment, how many line segments are there in total?
一条线段的中间又点了5个点，这时一共有多少条线段．
<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">7 * 6</gadget>
<output>42</output>

<gadget id="calculator">42 / 2</gadget>
<output>21</output>

<result>21</result>