Calculation: 2.3*0.1+2.3*9.9.
计算：2.3*0.1+2.3*9.9．
<gadget id="calculator">2.3 * 0.1</gadget>
<output>0.23</output>

<gadget id="calculator">2.3 * 9.9</gadget>
<output>22.77</output>

<gadget id="calculator">0.23 + 22.77</gadget>
<output>23</output>

<result>23</result>