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: Subtraction is a basic arithmetic operation. Variables, as well as more familiar numbers, can be subtracted using similar models, of take-away, the number line, and comparison. What Is the…
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 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.…
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