A practice room is laid with 1600 wooden floors with a length of 50 centimeters, a width of 10 centimeters and a thickness of 3 centimeters. What is the area of the practice room in square meters?
一个练功房铺设了1600块长50厘米，宽10厘米，厚3厘米的木地板，这个练功房的面积有多少平方米．
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/2) * (1/10) * 1_600</gadget>
<output>80</output>

<result>80</result>