Cut a circle with a radius of 1 cm from a rectangular cardboard with a length of 10 cm and a width of 8 cm. How many circles can be cut at most?
在一块长10cm、宽8cm的长方形纸板上剪半径是1cm的圆，最多可剪多少个？
<gadget id="calculator">1 * 2</gadget>
<output>2</output>

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

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<result>20</result>