The purpose of the book titled "Odd & Even Numbers" will allow kindergarten through fifth grade children to engage in this fun practice book and will have them learning odd and even numbers in no time. This book will give children plenty of opportunities for practice whatever their learning style may be. An odd number is an integer which is not a multiple divisible of two. If it is divided by 2, the result is a fraction. One is the first odd positive number. The next four bigger numbers are 3, 5, 7, and 9. An even number is defined as a whole number that is a multiple of 2. It is important that children become confident with this skill because they will be asked to answer questions as they advance in their academics on a firm understanding of odd and even numbers. For example: Organize these numbers into the Venn diagram. A Venn diagram (also called primary diagram, set diagram or logic diagram) is a diagram that shows all possible logical relations between a finite collection of different sets.