Front

Set of numbers 1, 2, 3, 4,... Also called counting numbers.

Back

Natural Number

Front

All positive, non-decimal, non-fractional integers

Back

Whole Number

Front

A real number that can't be expressed as a fraction of two integers, with non-ending, non-repeating decimals.

Back

Irrational Number

Front

A number that can be expressed as a fraction or has terminating decimals.

Back

Rational Number

Front

Whole numbers (positive, negative, and zero)

Back

Integer

Front

All rational and irrational numbers

Back

Real Number

Front

Number under radical sign

Back

Radicand

Front

A number raised to the second power, multiplied by itself.

Back

Squared

Front

Symbol for square root

Back

Radical Sign

Front

A number that when multiplied by itself equals a given number.

Back

Square Root