Algebraic Expressions and Definitions

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What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change. For example, in the expression 3x + 7, the constant is 7.

Tags

CCSS.6.EE.A.2B

Front

How do you identify the number of terms in an expression?

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Count each distinct part of the expression separated by + or - signs. For example, in 4x + 3 - 2y - 4w + 21, there are 5 terms.

Tags

CCSS.6.EE.A.2B

Front

What is a variable in an algebraic expression?

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A variable is a symbol that represents an unknown value. For example, in the expression 6y + 4, 'y' is the variable.

Tags

CCSS.6.EE.A.2B

Front

What is a coefficient in an algebraic expression?

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A coefficient is a number that multiplies a variable. For example, in the expression 3m + 21 - 4, the coefficient of 'm' is 3.

Tags

CCSS.6.EE.A.2B

Front

How do you simplify an algebraic expression?

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Combine like terms by adding or subtracting their coefficients. For example, simplify 13x + 21 + 2y + 14 - 2x - 4x + 6y to get 7x + 35 + 8y.

Tags

CCSS.7.EE.A.1

Front

What is an algebraic expression?

Back

An algebraic expression is a combination of numbers, variables, and operations (like +, -, *, /) that represents a value.

Tags

CCSS.6.EE.A.2B

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What does it mean to evaluate an expression?

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To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

Tags

CCSS.6.EE.A.2C

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What are like terms?

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Like terms are terms that have the same variable raised to the same power. For example, 3x and 5x are like terms.

Tags

CCSS.6.EE.A.2B

Front

What is the difference between an expression and an equation?

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An expression is a combination of terms without an equality sign, while an equation states that two expressions are equal.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a single term by each term in a parenthesis.

Tags

CCSS.6.EE.A.3