My mother took 100 yuan to go shopping in Zhongxi Warehouse. She spent 43.7 yuan on food and 36.9 yuan on daily necessities. How much money is left?
妈妈带了100元钱去中西仓储购物，买食品用了43.7元，买生活用品用去36.9元，还剩多少元？
<gadget id="calculator">43.7 + 36.9</gadget>
<output>80.6</output>

<gadget id="calculator">100 - 80.6</gadget>
<output>19.4</output>

<result>19.4</result>