2-1 Basic Assumptions: To use number properties to simplify expressions.

2-2 Addition on a Number Line: To add real numbers using rules for addition.

2-3 Rules for Addition: To add real numbers using rules for addition.

2-4 Subtracting Real Numbers: To subtract real numbers and to simplify expressions involving differences.

2-5 The Distributive Property: To use the distributive property to simplify expressions.

2-6 Rules for Multiplication: To multiply real numbers.

2-7 Problem Solving: Consecutive Integers: To write equations to represent relationships among integers.

2-8 The Reciprocal of a Real Number: To simplify expressions involving reciprocals.

2-9 Dividing Real Numbers: To divide real numbers and to simplify expressions involving quotients.