The Real number System.

What are natural numbers?

• Numbers that cannot be written as a fraction.

• Numbers including zero and negative numbers.

• Counting numbers starting from 1.

• Numbers that can be written as a fraction.

Which of the following is a whole number?

• 
  Pi (π)

• -1

• 1/2

• 0

Which of the following is true about rational numbers and whole numbers?

• Neither set contains negative numbers.

• Whole numbers are a subset of rational numbers.

• Both sets contain negative numbers.

• Rational numbers are a subset of a whole number.

Which of the following are ways irrational numbers and natural numbers are alike?

• They are both subsets of rational numbers.

• Both sets include decimals.

• Both sets include zero.

• They are both subsets of real numbers.

Which of the following is a way integers and irrational numbers are alike?

• They both contain decimals.

• They are both subsets of real numbers.

• They are both subset of rational numbers,

• They both contain zero.

Which of the following is not a similarity between rational and irrational numbers?

• They are both subsets of real numbers.

• They both contain negative numbers.

• They both contain decimals.

• They both contain zero

Organize these options into the right categories

Groups:

(a) Rational numbers

,

(b) Irrational numbers

• 1

• -1

• 6.7

• neither rational or irrational

• Irrational

• Both rational or irrational

• rational

Set Q and set Z are sub sets of the real number system.

Q = { rational numbers }

Z = { integers }

Which Venn diagram represents the relationship between Set Q and Set Z?

• 
• 
• 
• 

Label all the parts of the Real number system correctly.

a

b

c

d

e

Integers

Non-real numbers

Irrational Numbers

Whole Numbers

Real Numbers

Rational Numbers

Natural Numbers