The school music rehearsal hall is 16 meters long and 10 meters wide. How many tiles are needed to pave the floor with square tiles with a side length of 4 decimeters?
学校音乐排练厅长16米，宽10米．用边长4分米的正方形瓷砖铺地，一共需要瓷砖多少块？
<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">16 * 10 * (25/4)</gadget>
<output>1_000</output>

<result>1_000</result>