(1+0.12+0.23)*(0.12+0.23+0.34)-(1+0.12+0.23+0.34)*(0.12+0.23)=how much.
(1+0.12+0.23)*(0.12+0.23+0.34)-(1+0.12+0.23+0.34)*(0.12+0.23)=多少．
<gadget id="calculator">1 + 0.12 + 0.23</gadget>
<output>1.35</output>

<gadget id="calculator">0.12 + 0.23 + 0.34</gadget>
<output>0.69</output>

<gadget id="calculator">1.35 * 0.69</gadget>
<output>0.9315</output>

<gadget id="calculator">1 + 0.12 + 0.23 + 0.34</gadget>
<output>1.69</output>

<gadget id="calculator">0.12 + 0.23</gadget>
<output>0.35</output>

<gadget id="calculator">1.69 * 0.35</gadget>
<output>0.5915</output>

<gadget id="calculator">0.9315 - 0.5915</gadget>
<output>0.34</output>

<result>0.34</result>