From sixth to eighth grade, students apply and extend previous understandings of arithmetic to work with algebraic expressions, in which variables stand for unknown or changing numbers. Students build fluency in writing and manipulating expressions and in solving equations and inequalities, including those with exponents and radicals. Students represent and analyze relationships between dependent and independent variables and explore proportional relationships and linear equations.
Write, evaluate and manipulate expressions and solve equations and inequalities.
Manipulate expressions, including those with exponents; solve equations and systems of equations; and use scientific notation.
Manipulate expressions and solve equations and inequalities, including those with negative numbers.
Step-by-Step Solutions for Arithmetic
Pre-Algebra Web App
Free Unlimited Arithmetic Practice Problems