In what has become an annual holiday tradition, PNC bank calculates the prices of all 12 gifts from the carol and releases what they calls the Christmas price index.

在一年一度的节日传统中，PNC银行计算圣诞颂歌中所有12件礼物的价格，并发布他们所谓的圣诞价格指数。

Such courses, Hacker argues, are a remedy to the numerical illiteracy of adults who have completed high-level math like algebra but are unable to calculate the price of, say, a carpet by area.

哈克认为，这类课程对于缺乏算术能力的成年人来说是一种补救措施，他们虽然学完了像代数这样的高等数学，但却不会算价格，比如按面积计算地毯的单价。

Such courses, Hacker argues, are a remedy for the numerical illiteracy of adults who have completed high-level math like algebra but are unable to calculate the price of, say, a carpet by area.

哈克认为，此类课程是对数字文盲的一种补救措施， 这些成年人已经完成了代数等高级数学， 但无法按面积计算地毯等价格。