Unit 1: Real Numbers Review (TEKS: 8.2A, 8.2B, 8.2C 8.2D)

Front

What are real numbers?

Back

Real numbers include all the numbers on the number line, including rational numbers (like integers and fractions) and irrational numbers (like square roots of non-perfect squares and pi).

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; its decimal representation goes on forever without repeating.

Front

How do you convert a number to scientific notation?

Back

To convert to scientific notation, express the number as a product of a number between 1 and 10 and a power of 10.

Front

What is the scientific notation of 0.0000008?

Back

The scientific notation of 0.0000008 is 8 x 10^-7.

Front

How do you determine if a number is rational or irrational?

Back

A number is rational if it can be expressed as a fraction of two integers; otherwise, it is irrational.

Front

What is the classification of the number 7π?

Back

7π is classified as a real and irrational number.

Front

Back

Front

How do you order numbers in descending order?

Back

To order numbers in descending order, arrange them from the largest to the smallest.

Front

Back