Simplifying Expressions

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 simplify an expression?

Back

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

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 simplifying expressions: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - often remembered as PEMDAS.

Front

What is a variable?

Back

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

Front

What are like terms?

Back

Like terms are terms in an expression that have the same variable raised to the same power. For example, 2x and 3x are like terms.

Front

What is the result of 24 - (15 + 2) + 3 - 9?

Back

1

Front

What is the result of (22 - 4) + [(9 - 7) x 3]?

Back

24

Front

What is the result of 28 - (11 + 4) ÷ 5?

Back

25

Front

What is the result of 36 - [1 + (7 x 2)] - (3 + 1)?

Back

17

Front

What is the result of 27 ÷ 3 + (15 - 4) x 4?

Back

53