Evaluate Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables (like x or y), and operations (like addition, subtraction, multiplication, and division).

Front

How do you evaluate an algebraic expression?

Back

To evaluate an algebraic expression, substitute the values of the variables into the expression and perform the operations according to the order of operations (PEMDAS/BODMAS).

Front

What does the term 'substitution' mean in algebra?

Back

Substitution is the process of replacing a variable in an expression with a specific value.

Front

Evaluate the expression 2(a - 5) + 2 when a = 15.

Back

22

Front

Evaluate the expression 4m + t when m = 7 and t = 2.

Back

30

Front

What is the formula for total earnings based on hours worked and deliveries made?

Back

The formula is 7h + 1.50d, where h is hours worked and d is deliveries made.

Front

How much will Sally make after working 10 hours and making 3 deliveries using the formula 7h + 1.50d?

Back

$74.50

Front

Evaluate the expression 6a - 3d when a = 1 and d = 2.

Back

0

Front

Evaluate the expression 2a + 4b when a = 10 and b = 6.

Back

44

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).