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九年义务教育六年制小学数学教科书第十二册第4页讲“成数”和“折扣”时,这样写着:“一成是十分之一”,“‘几折’就表示十分之几”。这样说对吗?由于“成数”和“折扣”都有自己特定的意义,是专用名词,而十分之几是一个数,是一个抽象出来的、不带任何具体意义的数,它们之间能直接用“是”、”就表示”这样类似等号的词联系起来么?关于“成数”和“折扣”的特定意义,教科书同页上是这样写的:“农业收成,有时用‘成数’来表示”。“工厂和商店有时减价出售商品,通称打‘折扣’出售。”
When we say “a few percent” and “discount” in the nine-year compulsory education six-year primary school mathematics textbook, twelfth page, we read: “10% is one tenth.” How many? “ Is it correct to say that? The ”number“ and ”discount“ have their own specific meaning, special nouns, and a few is a number, is an abstract, without any specific number, between them Can the direct use of ”yes“ and ”say“ of such equated words? In terms of the specific meaning of the ”number“ and ”discount“, the textbook is written on the same page as: ”Agricultural harvests, Into a few 'to represent.' “Factories and shops sometimes sell for sale at discounted prices, which are generally called 'discounts' for sale.”