Solving Expressions

Front

Evaluate when x = 8: 2x + x - 10

Back

14

Front

If x=2 and y=4, what is 3x + y?

Back

10

Front

If 9 = p, what is p^2?

Back

81

Front

Evaluate 8a - b if a = 10 and b = 6

Back

74

Front

Evaluate when a = 15: 2(a - 5) + 2

Back

22

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 substituting the variables with given numbers.

Front

What is a variable in mathematics?

Back

A variable is a symbol (like x or y) that represents an unknown value.

Front

What is the order of operations?

Back

The order of operations is a set of rules that defines the correct sequence to evaluate a mathematical expression: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What is the value of 5x when x = 3?

Back

15