Rational and Irrational Numbers

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.

Tags

CCSS.5.NBT.A.2

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; it cannot be written as a ratio of two integers.

Tags

CCSS.8.NS.A.1

Front

Is 0 a rational number?

Back

Yes, 0 is a rational number because it can be expressed as 0/1.

Tags

CCSS.HSN.RN.B.3

Front

What are whole numbers?

Back

Whole numbers are non-negative numbers that do not have fractions or decimals, including zero (0, 1, 2, 3, ...).

Front

What are integers?

Back

Integers are whole numbers that can be positive, negative, or zero (-2, -1, 0, 1, 2, ...).

Front

What is the square root of 98?

Back

The square root of 98 is approximately 9.899, which falls between 9 and 10.

Tags

CCSS.8.NS.A.2

Front

Give an example of a rational number.

Back

An example of a rational number is 1/2 or 0.75.

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

Front

Give an example of an irrational number.

Back

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

Tags

CCSS.8.NS.A.1

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as fractions.

Front

What is a natural number?

Back

Natural numbers are the set of positive integers starting from 1 (1, 2, 3, ...).