Friday May 9- Operations, Expressions, and Patterns

Front

What is an expression in mathematics?

Back

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

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by performing the operations in the correct order.

Front

What is the order of operations?

Back

The order of operations is a set of rules that tells you the sequence to follow when evaluating an expression: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). This is often remembered by the acronym PEMDAS.

Front

What is a sum?

Back

A sum is the result of adding two or more numbers together.

Front

What is a product?

Back

A product is the result of multiplying two or more numbers together.

Front

What is an additive relationship?

Back

An additive relationship is when one quantity increases or decreases by adding or subtracting a constant value.

Front

How do you represent the sum of two numbers in an expression?

Back

You can represent the sum of two numbers, a and b, as (a + b).

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form, combining like terms and performing operations.

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Front

What is the value of 12 + 8?

Back

The value of 12 + 8 is 20.