If number A: number B=0.8, then the following statement is correct about how much greater number B is than number A
如果甲数：乙数=0.8，那么下列说法正确的是乙数比甲数大多少
<gadget id="calculator">1 - 0.8</gadget>
<output>0.2</output>

<gadget id="calculator">0.2 / 0.8</gadget>
<output>0.25</output>

<result>0.25</result>