Parts of Expressions

Front

What is a coefficient?

Back

A coefficient is a numerical factor in a term of an expression. For example, in the term 3x, 3 is the coefficient.

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What is the Identity Property of Addition?

Back

The Identity Property of Addition states that when you add zero to any number, the result is that number. For example, 6 + 0 = 6.

Front

What is the Inverse Property of Multiplication?

Back

The Inverse Property of Multiplication states that when you multiply a number by its reciprocal, the result is 1. For example, 9 x 1/9 = 1.

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables and constants.

Front

What is a variable?

Back

A variable is a symbol, often represented by a letter, that stands for an unknown value in an expression or equation.

Front

What is a term in an expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both, separated by addition or subtraction.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations without an equality sign, while an equation includes an equality sign.

Front

What is the Commutative Property of Addition?

Back

The Commutative Property of Addition states that changing the order of the addends does not change the sum. For example, 3 + 5 = 5 + 3.

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What is the Associative Property of Addition?

Back

The Associative Property of Addition states that the way in which numbers are grouped in addition does not change the sum. For example, (2 + 3) + 4 = 2 + (3 + 4).

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change. For example, in the expression 4x + 5, 5 is a constant.