The weight of an elephant is 5 tons, and the weight of an elephant is 400 kilograms more than 10 times that of a cow. How many kilograms does a cow weigh?
一只大象的体重是5吨，大象的体重比奶牛的10倍还多400千克，奶牛的体重是多少千克？
<gadget id="calculator">5 * 1_000</gadget>
<output>5_000</output>

<gadget id="calculator">5_000 - 400</gadget>
<output>4_600</output>

<gadget id="calculator">4_600 / 10</gadget>
<output>460</output>

<result>460</result>