There are 8 black balls and 2 white balls of the same shape and size in a bag, one of them is randomly drawn out each time, and then put back into the bag, 1000 times, what is the approximate number of times the white balls are drawn out?
袋子里有形状大小完全相同的8个黑球和2个白球，每次从中任意摸出1个后再放回袋子里，摸1000次，摸出白球的次数大约是多少次．
<gadget id="calculator">8 + 2</gadget>
<output>10</output>

<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1_000 * (1/5)</gadget>
<output>200</output>

<result>200</result>