Expression Review

Front

Evaluate the expression when a = 4 and b = 5: 2a + 6b

Back

38

Front

Evaluate the expression: 5a + b for a= 6 and b= 3

Back

33

Front

Find an equivalent expression for: 36x + 24

Back

2(18x + 12)

Front

True or false: Addition ALWAYS comes before subtraction.

Back

False

Front

What would you solve first in the expression: 3 x 48 ÷ (15 - 3)?

Back

15 - 3

Front

What is an expression?

Back

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

Front

What is the order of operations?

Back

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What does it mean to evaluate an expression?

Back

To calculate the value of the expression by substituting variables with numbers.

Front

What is a variable in mathematics?

Back

A symbol (usually a letter) that represents an unknown value.

Front

What is a coefficient?

Back

A numerical factor in a term of an expression, e.g., in 4x, 4 is the coefficient.