Lili's new room is going to be paved with square bricks. If you use square bricks with an area of 0.16 square meters, you need 1600 pieces. If you use square bricks with a side length of 0.5 meters, how many pieces are needed?
丽丽的新房间准备用方砖铺地．如果用面积是0.16平方米的方砖需要1600块，如果改用边长0.5米的方砖，需要多少块？
<gadget id="calculator">0.16 * 1_600</gadget>
<output>256</output>

<gadget id="calculator">0.5 * 0.5</gadget>
<output>0.25</output>

<gadget id="calculator">256 / 0.25</gadget>
<output>1_024</output>

<result>1_024</result>