Naughty spent 15.8 yuan to buy bread, and there was 3.4 yuan left. How much money did Naughty have in total?
淘气买面包用去15.8元，还剩下3.4元，淘气原来一共有多少钱？
<gadget id="calculator">15.8 + 3.4</gadget>
<output>19.2</output>

<result>19.2</result>