square has a side length of 5 cm. If such a square is put together to form a large square, what is the perimeter of this large square?
一个正方形，边长5厘米，将这样的正方形拼成一个大的正方形，拼成这样的大正方形周长是多少？
<gadget id="calculator">5 + 5</gadget>
<output>10</output>

<gadget id="calculator">10 * 4</gadget>
<output>40</output>

<result>40</result>