Ch 3.1: Algebraic Expressions Flashcard...Part 2

Front

Evaluate the expression: n - 3 if n = 4

Back

1

Front

Evaluate the expression: x ÷ 4 if x = 80

Back

20

Front

Name the variable in the expression: 20 - 2x

Back

x

Front

Evaluate the expression: 4w - 3y if w = 7 and y = 6

Back

10

Front

Evaluate the expression: m + n if m = 29 and n = 11

Back

40

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that includes numbers, variables, and operations.

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents a number that can change.

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 difference between a constant and a variable?

Back

A constant is a fixed value, while a variable can change.

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).