To lay floor tiles for a classroom, 275 pieces are needed to pave with square bricks with a side length of 0.4 meters. Now switch to square bricks with a side length of 0.5 meters, how many pieces are needed?
给一间教室铺地砖，原来用边长为0.4米的方砖铺需要275块．现在改用边长0.5米的方砖，需要多少块？
<gadget id="calculator">0.4 * 0.4 * 275</gadget>
<output>44</output>

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

<gadget id="calculator">44 / 0.25</gadget>
<output>176</output>

<result>176</result>