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同学们,进入中学以后,我们认识了数字家族中的新成员——负数.那么,负数与我们以前学过的数有什么不同呢?引入负数以后会有哪些变化呢?下面我们就一起来研究.
The students, after entering middle school, we met the new member of the digital family - negative numbers. So what is the difference between a negative number and what we have learned in the past? What changes will happen after the introduction of negative numbers? Next we will study together. .