subtraction

Math Review of Operations with Real Numbers

Math Review of Operations with Real Numbers 150 150 Deborah

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…

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Math Review of Models for Subtraction

Math Review of Models for Subtraction 150 150 Deborah

Overview: 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…

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A Review of Math Fundamentals: Operations with Decimals

A Review of Math Fundamentals: Operations with Decimals 150 150 Deborah

Overview:  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…

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Let’s Do a Pre-Algebra Review of Inequalities

Let’s Do a Pre-Algebra Review of Inequalities 150 150 Deborah

Overview:  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…

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Basica of Algebra: Order of Operations

Basica of Algebra: Order of Operations 150 150 Deborah

Overview:  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…

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Order of Operations: PEMDAS

Order of Operations: PEMDAS 150 150 SchoolTutoring Academy

Arithmetic 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…

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Associative, Distributive and Commutative Properties

Associative, Distributive and Commutative Properties 150 150 SchoolTutoring Academy

Associative 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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