Pre-Algebra: Chapter 2 Expressions Test

Front

What are like terms in algebra?

Back

Like terms are terms that have the same variable raised to the same power. For example, 4x and 14x are like terms, while 4x and 14y are not.

Front

True or False: 4 and 14 are like terms.

Back

True

Front

How do you simplify the expression 7v + 2 + 12 + 2v?

Back

Combine like terms: 7v + 2v = 9v and 2 + 12 = 14, so the simplified expression is 9v + 14.

Front

What is the associative property in mathematics?

Back

The associative property states that the way in which numbers are grouped in addition or multiplication does not change their sum or product. For example, (a + b) + c = a + (b + c).

Front

Identify the property: 12 + (3 + 4) = (12 + 3) + 4.

Back

This is an example of the associative property.

Front

Fill in the blank using the associative property: 5 + (7 + 6) = (5 + __) + 6.

Back

The blank should be filled with 7.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression. For example, in the expression 6y + 7, the coefficient of y is 6.

Front

Identify the coefficient in the expression 6y + 7.

Back

The coefficient is 6.

Front

What is the first step in simplifying an expression with like terms?

Back

The first step is to identify and group the like terms together.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.