IXL - Sets, subsets, and complements (Algebra 1 practice)

Which is the set of integers greater than 2 and less than 6?

∅

{

}

{

}

{

}

ref_doc_title.

Learn with an example

question

Which is the set of integers greater than

–

and less than

–

{

–

}

{

–

}

{

–

}

{

–

}

key idea

A set is a collection of objects called elements. The elements of a set can be numbers, letters, or other items.

One way to write a set is in roster

notation.

Roster notation uses curly braces and commas between the elements of the set. For example, this is one way to write the set of whole numbers less than or equal to 5:

{

}

An integer is a positive or negative whole number or 0. It is an element of this set: {… , –2, –1, 0, 1, 2, …}.

solution

You can see the integers that are greater than

–

and less than

–

on a number line.

The following integers are elements of the set because they are greater than

–

and less than

–

and

–

The integer

–

is not an element of the set because it is not greater than

–

The integer

–

is not an element of the set because it is not less than

–

So, this is the set of integers greater than

–

and less than

–

{

–

}

Looking for more? Try this:

$Confetti$

Excellent!

Now entering the Challenge Zone—are you ready?

Questions
answeredQuestions

Time
elapsedTime

hr	min	sec
00	00	06

SmartScore
out of 100
IXL's SmartScore is a dynamic measure of progress towards mastery, rather than a percentage grade. It tracks your skill level as you tackle progressively more difficult questions. Consistently answer questions correctly to reach excellence (90), or conquer the Challenge Zone to achieve mastery (100)! Learn more

Teacher tools

Work it out

Not feeling ready yet? These can help:

H.11Classify real numbers

F.1Prime or composite

F.3Find all the factor pairs of a number

Excellent! You got that right!

Jumping to level 1 of 1

Excellent!