Unit 4 Building Conceptual Understanding Of Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, ×, ÷) that represents a value.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting variables with numbers and performing the operations.

Front

What is a coefficient in an algebraic expression?

Back

Front

How do you write the difference of two numbers as an expression?

Back

Front

What is an exponent?

Back

Front

How do you express repeated multiplication using exponents?

Back

Front

Back

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value that does not change.

Front

Back

Front

What is the order of operations in mathematics?

Back

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