Unit 1 - Lesson 2 - Classification of Numbers

Which of the following best describes natural numbers?

• All positive and negative whole numbers.

• Numbers starting from 0 and increasing by 1.

• Counting numbers starting from 1.

• Numbers that include decimals and fractions.

How do whole numbers differ from natural numbers?

• Whole numbers include negative integers, while natural numbers do not.

• Whole numbers include zero, while natural numbers do not.

• Whole numbers include fractions, while natural numbers do not.

• Whole numbers include all real numbers, while natural numbers do not.

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Which statement accurately describes integers?

• Integers include all positive and negative numbers, including decimals.

• Integers include all whole numbers and their negative counterparts.

• Integers are only positive counting numbers.

• Integers are numbers that can be expressed as a fraction.

What is a key characteristic of rational numbers?

• They are numbers that cannot be expressed as a simple fraction.

• They include only positive integers and zero.

• They can be expressed as a fraction p/q, where p and q are integers and q is not zero.

• Their decimal representation is always non-repeating and non-terminating.

Which of the following is an example of an irrational number?

• 1/2

• -5

• Pi (π)

• 0