To tile a wall, plan to use 600 square bricks with a side length of 20 cm, how many square bricks with a side length of 40 cm are actually needed?
给一面墙贴砖，计划用边长为20厘米的方砖需要600块，实际改用边长为40厘米的方砖，需要多少块？
<gadget id="calculator">20 * 20 * 600</gadget>
<output>240_000</output>

<gadget id="calculator">40 * 40</gadget>
<output>1_600</output>

<gadget id="calculator">240_000 / 1_600</gadget>
<output>150</output>

<result>150</result>