25.12-(how much-5.63)=6.53.
25.12-(多少-5.63)=6.53．
<gadget id="calculator">25.12 - 6.53</gadget>
<output>18.59</output>

<gadget id="calculator">18.59 + 5.63</gadget>
<output>24.22</output>

<result>24.22</result>