Real Number System

Front

What is the definition of a real number?

Back

A real number is any number that can be found on the number line, including both rational and irrational numbers.

Tags

CCSS.8.NS.A.1

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a fraction of two integers. Its decimal representation is non-repeating and non-terminating.

Tags

CCSS.8.NS.A.1

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Tags

CCSS.5.NBT.A.2

Front

What are whole numbers?

Back

Whole numbers are non-negative integers, including zero (0, 1, 2, 3, ...).

Front

What are natural numbers?

Back

Natural numbers are the set of positive integers starting from 1 (1, 2, 3, ...). They do not include zero.

Front

How can you identify a rational number?

Back

A number is rational if it can be expressed as a ratio of two integers (a fraction).

Tags

CCSS.5.NBT.A.2

Front

Is the number 0 a natural number?

Back

No, 0 is not considered a natural number; natural numbers start from 1.

Front

What is the relationship between whole numbers and rational numbers?

Back

All whole numbers are also rational numbers because they can be expressed as a fraction with a denominator of 1.

Front

Can an irrational number be expressed as a fraction?

Back

No, an irrational number cannot be expressed as a fraction of two integers.

Tags

CCSS.8.NS.A.1

Front

What is an example of an irrational number?

Back

An example of an irrational number is √2 or π (pi).

Tags

CCSS.8.NS.A.1