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Sets - Introduction, Union and Intersection

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

What letter represents the set of integers?

a)

I

b)

N

c)

W

d)

Z

2.

Which of the following represents the set of whole numbers?

a)

{1, 2, 3, ...}

b)

{0, 1, 2, 3, ...}

c)

{... -2, -1, 0, 1, 2, 3, ...}

d)

None of the above

3.

Which of the following represents the set of natural numbers?

a)

{1, 2, 3, ...}

b)

{0, 1, 2, 3, ...}

c)

{... -2, -1, 0, 1, 2, 3, ...}

d)

None of the above

4.

Which of the following Greek letters represents null set?

a)

θ

b)

Ø

c)

𝞼

d)

5.

Given that A = { 1, 2, 3, 4, 5} , B = { 2, 4, 6, 8, 10}. A and B are

a)

universal sets

b)

null sets

c)

equal sets

d)

equivalent sets

6.

Given that A = { 1, 2, 3, 4, 5} , B = { 2, 3, 4, 5, 7, 9}. What is the union of A and B?

a)

{ 1, 2, 3, 4, 5, 7, 9}

b)

{ 2, 3, 4, 5, 7, 9}

c)

{ 1, 2, 3, 4, 5}

d)

{ 1, 2, 3, 4, 5, 9}

7.

Given that A = { 1, 2, 3, 4, 5} , B = { 2, 3, 4, 5, 7, 9}. What is the intersection of A and B?

a)

{ 1, 2, 3, 4, 5}

b)

{ 2, 3, 4, 5}

c)

{ 3, 4, 5}

d)

{ 4, 5, }

8.

State whether the following statement is true or false:


If A = {5, 6, 7} and B = {6, 8, 10, 12}; then A ∪ B = {5, 6, 7, 8, 10, 12}.

a)

True

b)

False

9.

State whether the following statement is true or false:


Union of two sets is the set of elements which are common to both the sets.

a)

True

b)

False

10.

State whether the following statement is true or false:


Two overlap sets have all the elements common.

a)

True

b)

False