Front

What is the real number system?

Back

The real number system includes all the numbers that can be found on the number line, including rational and irrational numbers.

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as a fraction or ratio of two integers, where the denominator is not zero.

Front

What are irrational numbers?

Back

Irrational numbers are numbers that cannot be expressed as a simple fraction; they have non-repeating, non-terminating decimal expansions.

Front

Which subsets of the real number system does the number 0 belong to?

Back

Natural, whole, integer, rational, real.

Front

Which subsets of the real number system does the number -5 belong to?

Back

Integer, rational, real.

Front

Which subsets of the real number system does the number 1.5 belong to?

Back

Rational, real.

Front

What is a natural number?

Back

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

Front

What is a whole number?

Back

Whole numbers are the set of non-negative integers (0, 1, 2, 3, ...).

Front

What is an integer?

Back

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

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.