Expressions

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 distribute an expression?

Back

Distributing an expression means to multiply each term inside parentheses by the term outside the parentheses.

Front

What is the result of distributing the expression 2(x + 3)?

Back

2x + 6

Front

How do you evaluate an expression?

Back

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

Front

Evaluate the expression 2y + 3 when y = 10.

Back

23

Front

What is the product of a number and 4?

Back

4n, where n is the number.

Front

What does combining like terms mean?

Back

Combining like terms means to add or subtract terms that have the same variable raised to the same power.

Front

Simplify the expression 3a + 4b + 2a - b.

Back

5a + 3b

Front

What is the result of (b + 8)5?

Back

5b + 40

Front

What is a variable in an expression?

Back

A variable is a symbol (often a letter) that represents an unknown value.