Whole Numbers



Natural numbers are the counting numbers {1, 2, 3, …} (the non-negative integers)

A whole number is a number that is not a fraction or a decimal. The whole numbers include all the natural numbers and Zero.

Integers are the natural numbers and their negatives {… −3, −2, −1, 0, 1, 2, 3, …}.





positive number is a number that is bigger than zero.  In business, positive numbers were used to represent assets.

negative number is a real number that is less than zero. Such numbers are often used to represent  a value that is a deficit.

Negative numbers have many applications in business and personal finance. Example: How can we have less than nothing? When we’re in debt.

Two numbers that have the same magnitude but are opposite in signs are called Opposite Numbers. Example: +5 and -5 are Opposite Numbers

The absolute value (or modulus) |a| of an integer a is the numerical value of a without regard to its sign.  Example:  |-5| = 5

Now we will consider the four basic operations with whole numbers: addition, subtraction, multiplication, and division.

Place value

Place Value

Place Value Help



Basic_Operations 2     

The Irrational Numbers are real numbers that cannot be written as a simple fraction.

Real Numbers

Real Number Voc

Extending vocabulary using the Frayer Model.

Frayer Template

Create a graphic organizer (Frayer Model) for the following vocabulary words:  integer number, absolute value, opposite, rational number.

(keep a copy in your notebook)

Your ability to understand math problems can be improved with math journal writing. Be sure to include all the relevant information.   Remember- Show your work and answers in Your Math Journal   !