Calculation: 0.2+0.4+...+0.8+0.10+0.12+...+0.98+0.100=how much.
计算：0.2+0.4+…+0.8+0.10+0.12+…+0.98+0.100=多少．
<gadget id="calculator">0.2 + 0.8</gadget>
<output>1</output>

<gadget id="calculator">0.8 - 0.2</gadget>
<output>0.6</output>

<gadget id="calculator">0.6 / 0.2</gadget>
<output>3</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">1 * 2</gadget>
<output>2</output>

<gadget id="calculator">0.1 + 0.98</gadget>
<output>1.08</output>

<gadget id="calculator">0.98 - 0.1</gadget>
<output>0.88</output>

<gadget id="calculator">0.88 / 0.02</gadget>
<output>44</output>

<gadget id="calculator">44 + 1</gadget>
<output>45</output>

<gadget id="calculator">45 / 2</gadget>
<output>45/2 = around 22.5</output>

<gadget id="calculator">1.08 * (45/2)</gadget>
<output>24.3</output>

<gadget id="calculator">2 + 24.3 + 0.1</gadget>
<output>26.4</output>

<result>26.4</result>