Write and Interpret 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 numbers for the variables and performing the operations.

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.

Front

How do you write the expression for 'the sum of a number x and 5'?

Back

Front

What is the expression for 'the product of 4 and a number y'?

Back

Front

How do you express 'decrease a number z by 3'?

Back

Front

What does 'the difference between 10 and 2' mean in mathematical terms?

Back

Front

How would you express 'twice the sum of 3 and 4'?

Back

Front

What is the expression for 'the quotient of 20 and a number n'?

Back

Front

How do you express 'the total of 5, 10, and 15'?

Back