IM2 Flashcard 2 Review - Real Numbers

Front

What is a whole number?

Back

A whole number is a non-negative integer, including zero (0, 1, 2, 3, ...). Whole numbers are a subset of rational numbers.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient 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

What is the quotient of two rational numbers?

Back

The quotient of two rational numbers is always a rational number.

Front

What type of number is -14?

Back

-14 is an integer and a rational number, but it is not a natural number.

Front

What is a natural number?

Back

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

Front

What is a fraction?

Back

A fraction is a way to represent a part of a whole, expressed as a ratio of two integers.

Front

Which of the following is an example of an irrational number?

Back

The square root of 88 is an irrational number.

Front

Can a negative number be a natural number?

Back

No, natural numbers are always positive.

Front

Is 0 a rational number?

Back

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