Calculation: 1+1.2+1.4+1.6+1.8+...9.6+9.8+10.
计算：1+1.2+1.4+1.6+1.8+…9.6+9.8+10．
<gadget id="calculator">1 + 10</gadget>
<output>11</output>

<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">9 / 0.2</gadget>
<output>45</output>

<gadget id="calculator">45 + 1</gadget>
<output>46</output>

<gadget id="calculator">46 / 2</gadget>
<output>23</output>

<gadget id="calculator">11 * 23</gadget>
<output>253</output>

<result>253</result>