Grandpa Li's family plans to pave the kitchen with a length of 4 meters and a width of 3 meters with square bricks with a side length of 2 decimeters. How many square bricks are needed?
李爷爷家准备给长为4米，宽为3米的厨房铺上边长为2分米的方砖，需要多少块方砖？
<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">2 * (1/50)</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">3 / (1/25)</gadget>
<output>75</output>

<gadget id="calculator">4 * 75</gadget>
<output>300</output>

<result>300</result>