Expressions Review

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

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.

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power. For example, 2x and 3x are like terms.

Front

What is a coefficient?

Back

A coefficient is a numerical factor in a term. For example, in ⅙h, ⅙ is the coefficient.

Front

How do you combine like terms?

Back

To combine like terms, add or subtract their coefficients while keeping the variable part the same.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, meaning you can distribute a factor across a sum.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign, while an equation does. An equation states that two expressions are equal.

Front

What does '4 less than 5' mean in mathematical terms?

Back

It means 5 - 4, which equals 1.

Front

How do you evaluate an expression?

Back

To evaluate an expression, substitute the values of the variables and perform the operations.

Front

What is the result of combining x² and 2x²?

Back

The result is 3x², as they are like terms.