Classifying Real Numbers in 8th Grade Math

What makes a number a natural number?

• Being a decimal

• Being a fraction

• Being any whole number including negatives

• Being a positive whole number starting from 1

What is added to natural numbers to get whole numbers?

• 2

• -1

• 0

• 1

Which of these numbers is considered a whole number?

• 1/2

• 0

• -1

• 3.14

Which of the following is an example of an integer?

• 2/3

• 0.333...

• -4

• 3.14

Which of the following is not a characteristic of an integer?

• Can be negative

• Is a whole number

• Can be zero

• Can be a fraction

What type of decimal is considered a rational number?

• Terminating

• Non-terminating, non-repeating

• Both terminating and non-terminating, repeating

• Non-terminating, repeating

What distinguishes rational numbers from irrational numbers?

• Rational numbers are always whole numbers

• Irrational numbers are always decimals

• Irrational numbers can be written as fractions

• Rational numbers can be written as fractions

Which example is a rational number?

• Non-terminating, non-repeating decimal

• Square root of 2

• Pi (π)

• -12.2

Which of the following is an irrational number?

• -3/4

• 0.25

• Square root of 16

• Pi (π)

What is true about all real numbers?

• They are all rational

• They include both rational and irrational numbers

• They are all integers

• They are all natural numbers