Real Number Systems

What are natural numbers?

• Numbers that cannot be written as a fraction

• Your counting numbers starting from 1

• Numbers including zero and negative numbers

• Numbers that can be written as a fraction

Which of the following is a whole number?

• Pi (π)

• 1/2

• -1

• 0

What makes a number an integer?

• It must be a positive number

• It includes counting numbers, their opposites, and zero

• It can be written as a fraction

• It must be a decimal that terminates

Which of the following is a characteristic of rational numbers?

• They cannot be written as a fraction

• They include repeating decimals and decimals that terminate

• They go on forever without repeating

• They are only positive numbers

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

What is true about irrational numbers?

• They include all integers

• They can be written as a fraction with a non-zero denominator

• They are the same as natural numbers

• They include numbers like the square root of 2

Which of the following numbers is rational?

• Pi (π)

• The square root of 3

• The square root of 2

• -1.6

What does it mean if a number is real?

• It is always an integer

• It is either rational or irrational

• It cannot be used in everyday life

• It can only be a positive number

Which set of numbers includes -7?

• Integers

• Whole numbers

• Natural numbers

• Irrational numbers

What is an example of an irrational number?

• 2/3

• 0.75

• The square root of 5

• 100

Tags

CCSS.8.NS.A.1

Why can't a rational number have a denominator of zero?

• Because it would be an irrational number

• Because it would be considered a whole number

• Because it would then be a natural number

• Because division by zero is undefined

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D