GRADE 7

(19)(2)

(a)  

(16)(4)

(a)  

(18)(7)

(a)  

(17)(4)

(a)  

If A= { Set of Primary Colors}, what is n(A)?

• 1

• 2

• 3

• 4

What if there is no element in a given set? What will be its cardinality?

• n(A)= 0

• n(A)= {}

• n(A)= 1

If U = { 1, 2, 3, 4, 5, 6, 7} and A= {2,4}. What is A'

(a)  

If A = {1, 3, 5, 15}, B = {2, 3, 5, 7}, C = {2, 4, 6, 8} then what is (A U B) ∩ C ?

(a)  

 

If every element in set A is also in set B, then...

• A = B

• A is a subset of B

• B is a subset of A

What do you call in a property where A + B is equal to Real numbers

• Closure Property of Multiplication

• Closure Property of Addition

• Identity Property of Addition

• Identity Property of Multiplication