UEC Junior 1 · 数学 (Mathematics)
有理数 (Rational Numbers)
有理数单元最常考验运算规则的综合运用与数线上的比较，这往往是初一新生最容易因为符号混淆而失分的地方。只要你能熟练掌握正负数的四则运算规律并建立正确的数感，这部分在统考中绝对是必须稳拿的分数。
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