SETS AND SUBSETS OF NUMBERS - FLASHCARD

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

Is 8 an integer?

Back

Yes, because all whole numbers are integers.

Front

Which of the following is NOT an integer: 32, -9/3, 6/2, 3.5?

Back

3.5 is NOT an integer.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and denominator are integers.

Front

Which of the following is a positive rational number, but not a whole number: -2.5, 3/7, -7/8, 5?

Back

3/7 is a positive rational number, but not a whole number.

Front

What are whole numbers?

Back

Whole numbers are non-negative integers, including 0, 1, 2, 3, and so on.

Front

Are all whole numbers integers?

Back

Yes, all whole numbers are integers.

Front

Which statement is NOT true: All whole numbers are integers, All natural numbers are rational numbers, All rational numbers are whole numbers, Some integers are whole numbers?

Back

All rational numbers are whole numbers is NOT true.

Front

What is a natural number?

Back

Natural numbers are the set of positive integers starting from 1, such as 1, 2, 3, and so on.

Front

Which number belongs only in the box labeled 'Rational Numbers': 5, -8/2, 4/3, -8?

Back

4/3 belongs only in the box labeled 'Rational Numbers'.