Xiaolan's mother brought 50 yuan to buy vegetables, 15.60 yuan to buy meat, and 9.80 yuan to buy vegetables. How much money does mother have left?
小兰的妈妈带50元钱去买菜，买肉用去15.60元，买青菜用去9.80元，妈妈还剩下多少钱？
<gadget id="calculator">50 - 15.6 - 9.8</gadget>
<output>24.6</output>

<result>24.6</result>