Semester 1 Review

Front

What is the value of the expression 2x + 5(y - 1) when x=8 and y=5?

Back

36

Front

Simplify the expression 9c + 5z + 2 when c = -9 and z = 9.

Back

-34

Front

Translate the following statement into an equation: The product of 15 and a number is 45.

Back

15x = 45

Front

Simplify the expression 2(m + 4) + 3(3 - m).

Back

-m + 17

Front

Solve the expression 1(-7 + 2(3 + 2) - 5)^2.

Back

4

Front

What is the distributive property in mathematics?

Back

The distributive property states that a(b + c) = ab + ac.

Front

Define a variable in mathematics.

Back

A variable is a symbol used to represent an unknown value, often denoted by letters such as x, y, or z.

Front

What does it mean to simplify an expression?

Back

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

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression is a combination of numbers, variables, and operations without an equality sign.

Front

What is the order of operations in mathematics?

Back

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