The floor of a classroom is paved with square bricks with a side length of 2 decimeters, and 1,500 square bricks are needed. If the floor is paved with square bricks with a side length of 4 decimeters, how many bricks are needed?
一间教室的地面用边长是2分米的方砖来铺，需要方砖1500块，如果改用边长是4分米的方砖来铺，需要多少块？
<gadget id="calculator">2 * 2 * 1_500</gadget>
<output>6_000</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">6_000 / 16</gadget>
<output>375</output>

<result>375</result>