What is an expression?

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

A variable is a letter that represents an unknown number in an expression.

What is the degree of the term $$5x^3$$ ?

The degree of the term 5x^3 is 3.

What is the sum of the coefficients in the expression $$2x + 3y - 4z$$ ?

The sum of the coefficients is 2 + 3 - 4 = 1.

What does it mean for an expression to be simplified?

An expression is simplified when it is reduced to its simplest form, combining like terms.

Like terms are terms that have the same variable raised to the same power.

How do you combine like terms in the expression $$2x + 3x - 4$$ ?

Combine like terms to get $$5x - 4$$ .

Parts of an expression Flashcards: 15 Cards (8th Grade)

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a constant in an expression?

Back

A constant is a number that is ALONE (solo) in an expression.

2.

FLASHCARD QUESTION

Front

Identify the constant in the expression $2x - 5$ .

Back

The constant is 5.

3.

FLASHCARD QUESTION

Front

What is a coefficient?

Back

A coefficient is the number in front of a variable (letter) in an expression.

4.

FLASHCARD QUESTION

Front

What is the coefficient of x in the expression $3x + 4$ ?

Back

The coefficient of x is 3.

5.

FLASHCARD QUESTION

Front

List the terms in the expression $7x - 6 + 8$ .

Back

The terms are 7x, -6, and 8.

6.

FLASHCARD QUESTION

Front

How many terms are in the expression $3x + 2y + z$ ?

Back

There are 3 terms.

7.

FLASHCARD QUESTION

Front

What is the coefficient of y in the expression $8 + 5x - y$ ?

Back

The coefficient of y is -1.

10.

FLASHCARD QUESTION

Front

Identify the terms in the expression $4a + 3b - 2c + 7$ .

Back

The terms are 4a, 3b, -2c, and 7.

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