Real Number System Review

Front

What is the classification of the number zero?

Back

Zero is classified as a Whole number, Rational number, and Integer, but not a Natural number.

Front

Which of the following numbers is a whole number? 3.5, -3.5, -3, 1/2, -1/2

Back

-3 is a whole number.

Front

What is the square root of 60?

Back

The square root of 60 is approximately 7.75, which is between 7 and 8.

Front

Between which two whole numbers is √20?

Back

√20 is between 4 and 5.

Front

Between which two whole numbers does √115 fall?

Back

√115 falls between 10 and 11.

Front

Define a Rational Number.

Back

A Rational Number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Front

What is an Integer?

Back

An Integer is a whole number that can be positive, negative, or zero.

Front

What is a Natural Number?

Back

A Natural Number is a positive whole number starting from 1 (1, 2, 3, ...).

Front

What is the square root of 36?

Back

The square root of 36 is 6.

Front

What is the square root of 81?

Back

The square root of 81 is 9.