4-2 Equations: Multiplication and Division: To solve equations involving multiplication and division.

4-3 Equations: Decimals and Fractions: To solve equations involving fractions and decimals.

4-4 Combined Operations: To solve equations using more than one transformation.

4-5 Writing Expressions for Word Problems: To translate word phrases describing numerical operations into variable expressions.

4-6 Word Sentences and Equations: To translate word sentences involving numerical operations into equations.

4-7 Writing Equations for Word Problems: To relate word problems and equations.

4-8 Solving Word Problems: To use equations to solve word problems.