9/9 Flashcard Algebraic Expressions 2

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 2x + 3 is an algebraic expression.

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

What is the value of b² + 4 when b = 3?

Back

13

Front

How do you write 'five times the difference of nine and two' as an expression?

Back

5 x (9 - 2) is the expression for 'five times the difference of nine and two'.

Front

What is 2 raised to the third power?

Back

8

Front

If S students try out for baseball and 13 will be chosen, how many were not chosen?

Back

s - 13 is the expression for the number of students not chosen.

Front

What does '4 less than x' mean in algebraic terms?

Back

x - 4 is the algebraic expression for '4 less than x'.

Front

What is a variable in algebra?

Back

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

Front

What is the difference between an expression and an equation?

Back

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

Front

What is the order of operations in mathematics?

Back

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