I. Positive Numbers and Negative Numbers
Second, rational numbers.
Third, the number axis
Fourth, the inverse number
Absolute value of verb (abbreviation of verb)
Sixth, addition and subtraction of rational numbers.
Seven, the addition of rational numbers
Eight, subtraction of rational numbers
Nine, rational number multiplication and division method
Rational number multiplication
XI。 Division of rational numbers
XII. The Power of Rational Numbers
Parents accompany their children to buy supplementary books.
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