Number Theory BAsics

What type of set is denoted as either { } or ∅?

• Universal Set
• Empty (or Null) Set
• Disjointed Set
• Complement of a Set

Tags

CCSS.HSS.CP.A.1

Use the Roster Method to express: the set of the four seasons in the year.

• {winter, spring, summer, fall}

• spring, summer, fall, winter

• (winter, spring, fall, summer)

What does this symbol ( ⊆ ) represent in set theory?

• Union
• Intersection
• Disjointed
• Subset

Tags

CCSS.HSS.CP.A.1

What is a set?

(Choose 2)

• A method of solving problems

• A collection of objects

• A 2-D shape

• {7, 10}

• [2, 3]

{1,2,3,4,5,6} which set is a subset of this?

• {1,3,5}

• {0,1,2}

• {4,6,8}

• {1.1,2,3}

If A = {{1,2}, 3, 5, {6}}, then {6} ∈ A.

• TRUE

• FALSE

If A = {{1,2}, 3, 5, {6}}, then {1,2} ⊆ A.

• TRUE

• FALSE

Determine if the statement is true or false.
{10, 12, 14, 16} ⊆ {1,2,3,4,...99}

• True
• False

Let A = {2, 3, 4, 5, 6, 7} B = {2, 4, 7, 8) C = {2, 4}. Fill in the blanks by ⊂ or ⊄ to make the resulting statements true.

B __ A

• ⊂

• ⊄

Let A = {2, 3, 4, 5, 6, 7} B = {2, 4, 7, 8) C = {2, 4}. Fill in the blanks by ⊂ or ⊄ to make the resulting statements true.

C __ B

• ⊂

• ⊄