An auditorium is 18 meters long and 10 meters wide, and the floor is paved with square bricks with a side length of 4 decimeters. How many square bricks are needed?
一个礼堂长18米，宽10米，用边长4分米的方砖铺地，需要多少块方砖．
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">100 / 16</gadget>
<output>25/4 = around 6.25</output>

<gadget id="calculator">18 * 10 * (25/4)</gadget>
<output>1_125</output>

<result>1_125</result>