Write and Evaluate Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols (like +, -, *, /).

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

Front

Evaluate 27 - x when x = 10.

Back

17

Front

If strawberries are $1.95 a pound, how do you write an expression for p pounds of strawberries?

Back

$1.95p

Front

Simplify the expression: 9 + g + 4.

Back

13 + g

Front

If I have more 15 Pokemon cards than Austin, which expression shows how many I have?

Back

x + 15

Front

Evaluate 2r + 1 if r = 3.

Back

7

Front

What is a variable in algebra?

Back

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

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.