Midterm Review (Real Numbers)

Front

What is an irrational number?

Back

An irrational number is a number that does not terminate and does not repeat. Examples include √2 and π.

Front

Which category includes decimals that terminate or repeat?

Back

Rational Numbers. Rational numbers can be expressed as a fraction of two integers.

Front

What represents the set of integers?

Back

The set of integers is represented as {...-3, -2, -1, 0, 1, 2, 3...}.

Front

What is the relationship between rational and irrational numbers?

Back

Rational numbers are numbers that can be expressed as a fraction, while irrational numbers cannot. They are mutually exclusive.

Front

What is a repeating decimal?

Back

A repeating decimal is a decimal that has a digit or group of digits that repeat infinitely, such as 0.33333... or 1.66666... .

Front

What is a terminating decimal?

Back

A terminating decimal is a decimal that has a finite number of digits after the decimal point, such as 0.5 or 2.75.

Front

What is a natural number?

Back

Natural numbers are the set of positive integers starting from 1, such as 1, 2, 3, 4, ... .

Front

What is a whole number?

Back

Whole numbers are the set of natural numbers including zero, such as 0, 1, 2, 3, ... .

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.

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.