Calculation: 1.1+2.2+3.3+4.4+5.5+6.6+7.7+8.8+9.9=how much
计算：1.1+2.2+3.3+4.4+5.5+6.6+7.7+8.8+9.9=多少
<gadget id="calculator">1.1 + 2.2 + 3.3 + 4.4 + 5.5 + 6.6 + 7.7 + 8.8 + 9.9</gadget>
<output>49.5</output>

<result>49.5</result>