论文部分内容阅读
进行问题的变式与推广是学好数学的重要手段,但问题的变化是很严谨的事情,有时简单的一个数字的变化也会改变问题的本质.请看下面一个问题:问题1:国家规定个人发表文章、出版图书所得稿费的纳税计算方法是:①稿费不高于800元的不纳税;②稿费高于800元,而低于4000元的应缴纳超过800元的那部分稿费的14%的税;③稿费为4000元或高于4000元的应缴纳全部稿费的11%的税.试根据上述纳税的计算方法作答:(1)若王老师获得的稿费为2400元,则应纳税多少
Variants and promotion of the problem is an important means of learning mathematics, but the change of the problem is a very serious matter, and sometimes a simple change of a number will change the essence of the problem. Please see the following question: Question 1: Published articles, publishing books royalties paid tax calculation is: ① royalties not higher than 800 yuan not tax; ② royalties more than 800 yuan, and less than 4,000 yuan should pay more than 800 yuan that part of the 14% of the royalties Taxes; (3) 11% of the total royalties payable for a fee of 4,000 yuan or more are to be rewarded according to the above tax calculation: (1) If Mr. Wong received a fee of 2,400 yuan, how much should he pay