There is a multimedia classroom that needs to be paved with floor tiles. If floor tiles with a side length of 5 decimeters are used, then exactly 320 pieces are needed. If you use floor tiles with a side length of 8 decimeters instead, how many tiles are needed? (Solve with ratio)
有一个多媒体教室需要铺地砖，如果用边长为5分米的地砖，那么刚好需要320块．如果改用边长为8分米的地砖，那么需要多少块？(用比例解)
<gadget id="calculator">5 * 5 * 320</gadget>
<output>8_000</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">8_000 / 64</gadget>
<output>125</output>

<result>125</result>