Whole Numbers

Definition

Whole numbers are the set of non-negative integers, including 0, 1, 2, 3, and so on. They are the most basic and fundamental numbers used in mathematics, forming the foundation for numerical operations and calculations.

5 Must Know Facts For Your Next Test

1. Whole numbers are the simplest and most intuitive form of numbers, used for counting and ordering objects.
2. Whole numbers are closed under the basic arithmetic operations of addition, subtraction, multiplication, and division (except division by zero).
3. Whole numbers exhibit various properties, such as commutativity, associativity, and the existence of an identity element for addition and multiplication.
4. Whole numbers are the foundation for understanding place value and the base-10 number system, which is the most commonly used numeral system.
5. Whole numbers play a crucial role in the study of elementary algebra, as they are used to represent quantities, solve equations, and understand the behavior of numerical relationships.

Review Questions

• Explain the relationship between whole numbers and natural numbers, and how they are used in the context of 1.1 Introduction to Whole Numbers.
  • Whole numbers and natural numbers are closely related, but not exactly the same. Natural numbers are the positive integers, starting from 1, while whole numbers include 0 and all positive integers. In the context of 1.1 Introduction to Whole Numbers, both whole numbers and natural numbers are discussed as the most fundamental number sets, used for counting, ordering, and performing basic arithmetic operations. Understanding the properties and relationships between these number sets is essential for developing a strong foundation in elementary algebra.
• Describe how the properties of whole numbers, such as commutativity and associativity, are applied in the study of 1.9 Properties of Real Numbers.
  • The properties of whole numbers, including commutativity (a + b = b + a) and associativity (a + (b + c) = (a + b) + c), are foundational concepts that extend to the broader set of real numbers. In the context of 1.9 Properties of Real Numbers, these properties are used to understand the behavior of numerical operations and relationships, which are crucial for solving algebraic equations and manipulating expressions. Recognizing the applicability of whole number properties to real numbers helps students develop a deeper understanding of the underlying mathematical structures and principles.
• Analyze how the base-10 number system, which is built upon whole numbers, influences the way we represent and manipulate numerical quantities in elementary algebra.
  • The base-10 number system, which uses whole numbers as its foundation, is the most widely used numeral system in mathematics and algebra. This system's reliance on place value, where the position of a digit determines its value, is directly tied to the properties and relationships of whole numbers. In elementary algebra, understanding the base-10 system and the role of whole numbers is essential for tasks such as performing arithmetic operations, interpreting and manipulating algebraic expressions, and solving equations. The fluency with whole numbers and the base-10 system enables students to develop a more intuitive and efficient approach to algebraic problem-solving.

Related terms

Natural Numbers: The set of positive integers, starting from 1 and including 2, 3, 4, and so on.

Integers: The set of whole numbers, including negative numbers, zero, and positive numbers.

Rational Numbers: The set of numbers that can be expressed as a ratio of two integers, including whole numbers, fractions, and terminating or repeating decimals.