Simplifying Expressions

Front

What is an expression in mathematics?

Back

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

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form, making it easier to understand or calculate.

Front

What is the order of operations in mathematics?

Back

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

Front

Calculate: (12 x 6) - (3 x 2)

Back

66

Front

Evaluate the expression: 7 [(3.25 + 1.75) x (4 x 2)]

Back

210

Front

What is the value of the expression: 32 + (5 x 8) – 14?

Back

58

Front

Solve: (5 - 2) x 7

Back

21

Front

What is the result of (24 - 15) + 32?

Back

41

Front

What is a variable in an expression?

Back

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

Front

What does it mean to evaluate an expression?

Back

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