The side length of a square is 5 cm. When the side length is increased by 1 cm, how much does the area increase?
一个正方形的边长是5厘米，边长增加了1厘米以后，面积增加了多少？
<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">36 - 25</gadget>
<output>11</output>

<result>11</result>