Videos, solutions, 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.

This tutorial provides a basic introduction into set builder notation and roster notation. It explains how to convert a sentence and describe it using set notation using the roster method and set builder notation. It contains plenty of examples and practice problems which includes natural numbers, whole numbers, even numbers, odd numbers, integers, prime numbers, positive numbers and negative numbers.

Intersection of Sets, Union of Sets and Venn Diagrams

This tutorial provides a basic introduction into the intersection of sets and union of sets as it relates to venn diagrams. It explains how to find the intersection of two sets as well as the union of two sets. It contains plenty of examples and practice problems on intersection and union of sets.

Intersection of Sets

Learn about intersection of sets.

Intersection of Two Sets

Example:

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?

Sets and Venn Diagram

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