SAT Prep - Math

Counting problems in SAT ask you to determine how many different ways you can select or arrange objects such as alphabets in a word, toppings on a pizza, friends within a group, etc. The knowledge of counting is important to answer the "how many... read more ››

Combinations refer to the number of different ways you can select objects from a pool of objects. Keep in mind that the SAT will never explicitly ask you whether to use Permutations or Combinations. You will have to make the determination, so it is c... read more ››

Permutation refers to different ways objects in a set can be arranged. That definition is so nerdy that we will not expect you to remember. Allow us to talk about a simple example to show you what we mean: Suppose you have 3 seats numbered 1 to 3. ... read more ››

Sets are one of the most fundamental concepts in mathematics and you can expect few question in SAT that test your knowledge of sets.  This lesson covers the basics of set theory, how to describe a set and some of the essential concepts such as ... read more ››

If a  set, X that has all of the elements of another set Y, X is said to be a "superset" of the Y and  Y is a "subset" of X.  Ex: The set A{a, b} is a subset of the set S{a,b,c,d}. The null set is ... read more ››

The union of a set and  contains all the elements which are in either , or in or in bopth.  It is denopted by  .. The intersection of aset and  contains those elements which are in bopth and  . It is denopted by &nb... read more ››

Venn diagrams are sometimes used in SAT questions to describe a set union or intersection problem. Therefore you should know what they are and how to interpret them. In addition, Venn Diagrams are excellent visualization tools to solve problems that ... read more ››