G-Brain Workout series, a math problem book for 5th graders. - Title: Math 5th Grade - Series Name: G-Brain Workout 1 - Contents: Composite Polygons and Area Calculation 2 - Contents: Area Calculation of Circles and Sectors 3 - Contents: Properties of Integers 4 - Contents: Properties of Integers (2) - Multiples 5 - Contents: Problems Related to Numbers (1) - Fractions and Decimals 6 - Contents: Problems Related to Numbers (2) - Multiples - Target Age: 5th Grade Thank you for viewing. It is unused, although there may be some scratches from storage.