To build a civic square covering an area of 8,000 square meters, if 40 floor tiles are used for every 50 square meters, how many floor tiles should be prepared at least to build this square?
修建一块占地8000平方米的市民广场，如果每50平方米要用地砖40块，修这个广场至少要准备多少块地砖？
<gadget id="calculator">8_000 / 50</gadget>
<output>160</output>

<gadget id="calculator">160 * 40</gadget>
<output>6_400</output>

<result>6_400</result>