The school paves the floor tiles for the conference room. It takes 1,000 square bricks with a side length of 0.5 meters. If the square bricks with a side length of 1 meter are used instead, how many bricks are needed? (Use the method of solution ratio to answer).
学校给会议室铺地砖，采用边长为0.5米的方砖要1000块，如果改用边长为1米的方砖，需要多少块？(用解比例的方法解答)．
<gadget id="calculator">0.5 * 0.5 * 1_000</gadget>
<output>250</output>

<gadget id="calculator">250 / 1</gadget>
<output>250</output>

<result>250</result>