It takes 3000 bricks to pave the floor with square bricks with a side length of 2 decimeters, and how many bricks are needed to pave the floor with square bricks with a side length of 5 decimeters.
用边长是2分米的方砖铺地需要3000块，改用边长是5分米的方砖铺地，要用多少块．
<gadget id="calculator">2 * 2 * 3_000</gadget>
<output>12_000</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">12_000 / 25</gadget>
<output>480</output>

<result>480</result>