Ratios and proportional relationships (ch. 1-Ratios and proportional reasoning, ch. 2-Percents); Unit 2
The number System (ch. 3-Integers, ch. 4-Rational numbers) ;
Expressions and equations (ch. 5-Expressions, ch. 6-Equations and inequalities) ; Unit 4
Geometry (ch. 7-Geometric figures, ch. 8-Measure figures); Unit 5
Statistics and probability(ch. 9-Probability, ch. 10-Statistics).