Sets - Grade 7 (Demo Assessment)

What do you call a well-defined collection of objects that share the same characteristics?

• Group

• Set

• Collection

• Subset

It is one way of writing sets in which elements are enclosed with braces and separated by a comma.

• Roster Method

• Set-Builder Notation

• Roaster Method

• Set-Listing Notation

It is the total number of elements in a given set.

• Cardinality

• Universality

• Subset

• Number

It is a set whose members are all members of another set.

• Universal Set

• Subset

• Null Set

• Set

Which of the following is considered an empty set?

• A = { }

• B = {∅}

• C = {1}

• D = {0}

Which of the following is considered a well-defined set?

• A = {5, 10, 15, 20, 25}

• B = {0, 1, 10, 1, 2}

• C = {-2, 3, -4, 5, -6}

• D = {15, 7, 8, 10, 11}

A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}

B = {3, 6, 9, 12, 15}

Given the two sets above, what is the correct illustration for B ⊆ A using the Venn Diagram?

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What is the cardinality of set A?

• n(A) = 9

• n(A) = 5

• n(A) = 15

• n(A) = 4

Which of the following best illustrates a well-defined set?

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Given U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, which of the following is not a subset of the universal set?

• A = {8, 6, 9}

• B = {0, 1, 10}

• C = {2, 4, 6}

• D = {3, 6, 9}