The perimeter of a small square is 40 cm, and the side length of a large square is 15 cm longer than the side length of the small square. What is the perimeter of the large square?
一块小正方形的周长是40厘米，一块大正方形的边长比小正方形的边长多15厘米，求大正方形的周长是多少？
<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<gadget id="calculator">10 + 15</gadget>
<output>25</output>

<gadget id="calculator">25 * 4</gadget>
<output>100</output>

<result>100</result>