Sets: Elements, Union, Intersection

Videos, games, activities and worksheets to help SAT students review sets : elements, union and intersection. Some sample SAT questions are also presented.

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Set Terminology
Learn what set terminology is.
A set is a collection of well defined objects or items.
The objects or items are called elements of the set.
There are three methods to define sets: verbal or word description, roster method (list out the elements), the set notation.
Empty or null sets.

Union of Sets
Learn about union of sets.

Intersection of Sets
Learn about intersection of sets.

SAT & ACT Math: How to Find the Intersection or Union of Sets
If set R contains ten distinct even integers and set S contains ten distinct negative integers, what is the maximum possible number of elements in the intersection of the two sets?

SAT Question - Intersection of Two Sets
If S is the set of positive integers that are multiples of 7, and if T is the set of positive integers that are multiples of 13, how many integers are in the intersection of S and T?

SAT Math Lesson 12 - Sets and Venn Diagram

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