1-0.12+(1/2)-0.34+(1/3)-0.56+(1/5)-0.78=how much.
1-0.12+(1/2)-0.34+(1/3)-0.56+(1/5)-0.78=多少．
<gadget id="calculator">1 - 0.12</gadget>
<output>0.88</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) - 0.34</gadget>
<output>0.16</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) - 0.56</gadget>
<output>-0.226667</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) - 0.78</gadget>
<output>-0.58</output>

<gadget id="calculator">0.88 + 0.16 + (-0.226667) + (-0.58)</gadget>
<output>0.233333</output>

<result>0.233333</result>