1.Revision Grade 9 | Baamboozle - Baamboozle | The Most Fun Classroom Games!

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find C ∪ (A ∩ B)

c,d,e,g,h

If A = {a, b, 1} and B = {a, 2}, write the elements of A x B

find A ∩ (B ∪ C)

c,d,e

Given A = {1, 2, 5} and n(B) = 4, find the number of the elements of A x B.

12

find A union B

1,2,3,4,5,6,7

What is y if (x – y, 6 + 3x) = (4, 15)?

-1

write contrapositive of “If a shape is rectangular then it is a parallelogram”.

If a shape is not a parallelogram then it is not rectangular.

find A-B

1,2

write using symbol "4 more than twice of a number is less than six for all natural numbers."

“If a shape is rectangular then it is a parallelogram”. write Converse

If a shape is a parallelogram then it is rectangular.

write using symbol "Square of some real numbers is positive."

If the set A has 32 subsets, find n(A)

5

find B

3,6,7,5,4

Let A = {1, 2, 3} find n(AXA)

9

If (x – 1, y + 2) = (y + 3, 5), find x.

7

“If a shape is rectangular then it is a parallelogram” Write the inverse

Inverse: If a shape is not rectangular then it is not a parallelogram.

how many subsets of A=(a,b,c,d) do not contain the element b?

8

?

1

?

Let A = {1, 2, 3} and B = {x, y}. Find n(AXB)

6

If (4x – y, 3) = (7, 6x – 3y) , find x and y.

x=3 and y=5

?

b

If A=(4,8,12,16, ... , 80,84) what is n(A)?

21

24

18

20

?

1

find B-A

4,5,7

find A intersect B

3,6

Each subset of a set other than itself is called a/an .....

equal set

subset

equivalent set

proper subset

find A

1,2,3,6

if the set A is formed by the letters in the word "mathematics" find n(A).

7

6

8

11

Which one is a finite set?

set of prime numbers

set of natural numbers

set of integers less than 86

Set of five digit numbers

If a set A with n elements has 63 proper subsets, find n

6

Which one represents the set A=(x: -3<x<6, x is even)?

(2,4,6)

(2,4)

(-2,0,2,4)

(0,2,4)

If A x B = {(a, 1), (a, 3), (a, 5), (b, 1), (b, 3), (b, 5)}.then write A

a,b

If n(A)=10, n(B)=7 and n(A∪B)=13, what is n(A∩B)?

4

find A∩B∩C

d

If n(AxB)=6 and n(BxC)=21, what can n(AxC) be?

14

how many subsets of A=(a,b,c,d) contain the element c?

8