A steel wire is just wound into a square with a side length of 5 decimeters. If it is wound into a rectangle with a length of 8 centimeters, what is the width of the rectangle in centimeters?
一条钢丝刚好绕成一个边长是5分米的正方形，如果将它绕成长是8厘米的长方形，这个长方形的宽是多少厘米．
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<result>2</result>