The weight of 2 cows is about 1 ton, and the weight of 8 cows is about how many tons.
2头牛的体重大约是1吨，8头牛大约重多少吨．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * 8</gadget>
<output>4</output>

<result>4</result>