3.4-3.5 Evaluate Expressions

Front

Which expression represents: 16 fewer than x?

Back

x - 16

Front

Evaluate 7 + j if j = 2.

Back

9

Front

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

Back

22

Front

Which expression represents: Six times a number n, increased by 3?

Back

6n + 3

Front

Pencils are sold in packages of 12. Write an expression to represent the total number of pencils in p packages.

Back

12p

Front

What is an expression?

Back

A combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of an expression by substituting variables with numbers.

Front

What is a variable in mathematics?

Back

A symbol (like x or n) that represents an unknown value.

Front

What is the order of operations?

Back

The rules that dictate the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What does 'increased by' mean in an expression?

Back

It means to add a certain value to another value.