Classifying Real Numbers

Front

What is a rational number?

Back

Front

Back

95.\overline{3} is a rational number because it can be expressed as a fraction.

Front

Is 2 a natural number?

Back

True, 2 is a natural number.

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

Which of the following is an irrational number? 2.5, 5.72314....., -17, 1/2

Back

5.72314..... is an irrational number because it does not terminate or repeat.

Front

What is a whole number?

Back

Whole numbers are non-negative numbers without fractions or decimals, including zero.

Front

Which of the following is a whole number? -2, -10, 10, -1

Back

10 is a whole number.

Front

What is the difference between rational and irrational numbers?

Back

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

Front

Can a rational number have a decimal representation?

Back

Yes, a rational number can have a decimal representation, but it will either terminate or repeat.

Front

What is a natural number?

Back

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