Table of Contents
 Unit One Natural Numbers and Operations on Them
 Unit Two Integers

Unit Three Common Fractions
 Nonunit Fractions
 Fractions on a Number Line
 Fractions Greater than One on a Number Line
 Converting Improper Fractions to Mixed Numbers
 Converting Mixed Numbers to Improper Fractions
 Comparing Fractions Using Models: Same Numerator
 Comparing Fractions Using Models: Same Denominator
 Comparing Fractions Using Models
 Equivalent Fractions Using Multiplication
 Equivalent Fractions Using Division
 Comparing Fractions Greater than One
 Comparing Proper Fractions
 Simplifying Fractions Using Common Factors
 Adding Fractions with Unlike Denominators
 Subtracting Fractions with Unlike Denominators
 Adding Mixed Numbers Whose Denominators Are Multiples of the Same Number
 Subtracting Mixed Numbers with Unlike Denominators
 Multiplying Fractions by Whole Numbers
 Dividing Fractions
 Unit Four Statistics