Knowledge Check #9 - Expression Vocabulary

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

Identify the components of the expression: x + 14 - 3^2.

Back

The components are: variable (x), constant (14), and the result of the operation (3^2 = 9).

Front

How many terms are in the expression 5a^2 + 3b - 7?

Back

There are 3 terms in the expression: 5a^2, 3b, and -7.

Front

What is a term in an algebraic expression?

Back

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

Front

What is the base in the expression 4^2 + 2x - 7?

Back

The base is the number that is raised to a power; in this case, the base is 4.

Front

What is the power in the expression 4^2 + 2x - 7?

Back

The power is the exponent that indicates how many times the base is multiplied by itself; in this case, the power is 2.

Front

What are like terms in an expression?

Back

Like terms are terms that have the same variable raised to the same power, allowing them to be combined.

Front

Identify the like terms in the expression 5b - 6t + 4b - 7.

Back

The like terms are 5b and 4b.

Front

What is the difference between a term and a coefficient?

Back

A term is a part of an expression, while a coefficient is a numerical factor that multiplies a variable in a term.

Front

What does it mean to simplify an expression?

Back

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