classify numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction or ratio 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; it cannot be written as a ratio of two integers.

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

Front

What is a whole number?

Back

A whole number is a non-negative integer, which includes zero and all positive integers.

Front

What is a decimal number?

Back

A decimal number is a number that includes a decimal point, representing a fraction of a whole.

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.

Front

Is 0.5 a rational number?

Back

Yes, 0.5 is a rational number because it can be expressed as 1/2.

Front

Is -3 a whole number?

Back

No, -3 is not a whole number; whole numbers are non-negative.

Front

What type of number is 2.75?

Back

2.75 is a rational number because it can be expressed as 275/100.

Front

What is the set of integers?

Back

The set of integers includes all whole numbers, both positive and negative, as well as zero.