Overview Operations with real numbers are the most familiar types in mathematics. Those numerical expressions with constants and operations include such actions as addition, subtraction, multiplication, and division. Many algebraic…
read moreOverview: Properties of Addition and Multiplication The commutative and associative properties of addition and multiplication are useful within operations. Both properties help students to arrange and group numbers more effectively. …
read moreOverview: What Are Decimals? The word decimal has a Latin root that means “10”. Any number written in base 10 (which is the numerical base that we generally use) is…
read moreOverview: What Are Inequalities? Most of the time, in order to solve problems in pre-algebra or algebra, students use equations, where number sentences are exactly equal. However, some number sentences…
read moreOverview: A Set of Rules The order of operations refers to a set of rules that are commonly agreed upon in mathematics, so that the answer to a problem is…
read moreArithmetic operations involve addition, subtraction, multiplication, division etc. In an arithmetic operation, anything that is not a number may be an operation. Long ago, there was a lot of confusion…
read moreA Vector is a quantity which has both magnitude and direction. Example: Force, velocity, momentum etc. A vector is represented by a directed line segment. If the vector has the…
read moreThe probability of happening an event can easily be found using the definition of probability. But just the definition cannot be used to find the probability of happening at least…
read moreAssociative property: Associative law states that the order of grouping the numbers does not matter. This law holds for addition and multiplication but it doesn’t hold for subtraction and division.…
read moreAddition of matrices: If two matrices A and B are of the same order mxn, then the sum A+B is of the same order mxn and contains the elements obtained…
read more