I originally had 25.4 yuan in my piggy bank, but I spent 8.5 yuan to buy books, and my mother gave me another 5.6 yuan. How much is there in the piggy bank now?
我的储蓄罐里原来有25.4元，买书用了8.5元，妈妈又给了我5.6元，现在储蓄罐里有多少钱？
<gadget id="calculator">25.4 - 8.5</gadget>
<output>16.9</output>

<gadget id="calculator">16.9 + 5.6</gadget>
<output>22.5</output>

<result>22.5</result>