(11+13+15+17+19)-(10+12+14+16+18)=how much
(11+13+15+17+19)-(10+12+14+16+18)=多少
<gadget id="calculator">11 + 13 + 15 + 17 + 19</gadget>
<output>75</output>

<gadget id="calculator">10 + 12 + 14 + 16 + 18</gadget>
<output>70</output>

<gadget id="calculator">75 - 70</gadget>
<output>5</output>

<result>5</result>