Real Number System

Front

What are integers?

Back

Integers are whole numbers that can be positive, negative, or zero.

Front

Which of the following is NOT a natural number? 12, 3,000, 5, 0

Back

0 is not a natural number.

Front

Which of these numbers is an integer? 4.2, 4, -4.2, 4/3

Back

4 is an integer.

Front

What category is a subset of the integers? Rational numbers, Whole numbers, Irrational numbers, Negative numbers

Back

Whole numbers are a subset of integers.

Front

Are irrational numbers real numbers?

Back

Yes, irrational numbers are always real numbers.

Front

What are natural numbers?

Back

Natural numbers are the set of positive whole numbers starting from 1 (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 an example of an irrational number?

Back

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

Front

What is the difference between whole numbers and integers?

Back

Whole numbers include all natural numbers and zero, while integers include all whole numbers and their negative counterparts.

Front

Is -5 an integer?

Back

Yes, -5 is an integer.