If a bag of rice is marked with a net weight of 25kg_{+20g}**(g), what is the minimum net weight of this bag of rice in kilograms?
在一袋大米包装袋上标着净重25kg_{+20g}**(g)，那么这袋大米净重最少是多少公斤．
<gadget id="calculator">25 - 0.01</gadget>
<output>24.99</output>

<result>24.99</result>