Rational Numbers vs Irrational Numbers

Front

Is -5/8 a rational number?

Back

Yes, -5/8 is a rational number because it can be expressed as a fraction of two integers.

Front

The square root of 57 is ...

Back

Irrational, because it cannot be expressed as a fraction of two integers.

Front

-10, 10 and 0 are all examples of___________

Back

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

Front

The area of a square painting is 81 cm². What is the side length of the painting?

Back

9 cm, because the side length is the square root of the area.

Front

A REPEATING decimal is what type of number?

Back

Rational, because it can be expressed as a fraction.

Front

Define rational numbers.

Back

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

Front

Define irrational numbers.

Back

Irrational numbers are numbers that cannot be expressed as a fraction of two integers.

Front

Give an example of a rational number.

Back

1/2 is an example of a rational number.

Front

Give an example of an irrational number.

Back

The number π (pi) is an example of an irrational number.

Front

What is the sum of two rational numbers?

Back

The sum of two rational numbers is always a rational number.