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Worksheets

Set Theory

Total questions: 6

Worksheet time: 2mins

Name
Class
Date
1.

The meaning of the letter Z in set theory is

a)

Natural Number

b)

Integer Number

c)

Irrational Number

d)

Rational Number

2.

The meaning of the letter N in set theory is

a)

Natural Number

b)

Rational Number

c)

Real Number

d)

Irrational Number

3.

An example of an irrational number is

a)

π\pi

b)

2

c)

52\frac{5}{2}

d)

-6

4.

An example of an integer number is

a)

0

b)

π\pi

c)

2\sqrt{2}

d)

52\frac{5}{2}

5.

A = {1,2} and B = {2,3} The union of set A and B is:

a)

ABA\cup B ={1,3}

b)

A\cup B ={1,2,3}

c)

A\cup B ={2,3}

d)

A\cup B ={1}

6.

A = {1,2} and B = {2,3} The intersection of set A and B is:

a)

AB={2}A\cap B=\left\{2\right\}

b)

AB={1,2,3}A\cap B=\left\{1,2,3\right\}

c)

AB={1}A\cap B=\left\{1\right\}

d)

AB={3}A\cap B=\left\{3\right\}