A Siberian tiger weighs 215 kg, and a bison weighs 38 kg less than three times that of the Siberian tiger. How many kilograms does this bison weigh?
一只东北虎重215千克，一头野牛的体重比东北虎的3倍少38千克．这头野牛重多少千克？
<gadget id="calculator">215 * 3</gadget>
<output>645</output>

<gadget id="calculator">645 - 38</gadget>
<output>607</output>

<result>607</result>