Evaluating Algebraic Expressions

Front

Evaluate if a = 2 and b = 8: 6 + 7b - 3a

Back

56

Front

Evaluate m² if m = 5

Back

25

Front

Evaluate the expression when x = 8: 7(6 + 3 − x)

Back

7

Front

Evaluate 2r + 1 if r = 3

Back

7

Front

Evaluate the expression when x = 7 and y = 4: xy - 4(2)

Back

20

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What is a variable in algebra?

Back

A variable is a symbol, usually a letter, that represents an unknown value in an expression or equation.

Front

What is the value of x in the expression 3x + 4 = 10?

Back

x = 2