**Unit I. Integers**

Representing Integers, Opposites and Absolute Value, Expressions and Variables, Order of Operations, Evaluating Expressions.**Unit II. Equations**

Equations, Open Equations and Solutions, Properties of Operations, Distributive Property, Simplifying Equations, Addition and Substraction Equations, Multiplication and Division Equations.**Unit III. Rational Numbers**

Definitions, Decimals as Fractions, Adding and Subtracting Decimals, Adding and Subtracting Like Fractions, Adding and Subtracting Unlike Fractions, Dividing Fractions, Dividing Decimals.**Unit IV. Number Theory**

Exponents and Roots, Scientific Notation, Factors and Multiples, Greatest Common Factors, Least Common Multiple.**Unit V. Percent**

Ratios, Proportion and Percent, Solving Proportions.**Unit VI. Equations and Inequalities**

Solving Multi-step Inequalities.

## About the Exercises for Grades 7-8

Learn Integers, Equations, Rational Numbers and more. This tutorial contains over 800 practice exercises and lessons in the following topics: