7th Grade Math Semester 1 Review

Front

Simplify the expression: 10x + 45 ÷ 9 - (14 - 2x)

Back

12x - 9

Front

Identify the constant in the expression: 34y - 23x + z - 77

Back

-77

Front

Combine the fruits: 11 oranges + 7 apples - 4 oranges

Back

7 oranges + 7 apples

Front

Calculate: -8 - (-3) + 4

Back

-1

Front

Order from least to greatest: [10, -5, 3, 16, -1, 0, 1]

Back

-5, -1, 0, 1, 3, 10, 16

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value, often denoted by letters like x, y, or z.

Front

What is an expression in math?

Back

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

Front

What does it mean to simplify an expression?

Back

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

Front

What is the difference between a constant and a variable?

Back

A constant is a fixed value that does not change, while a variable can represent different values.

Front

What is the order of operations in math?

Back

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