Pre Algebra Ch 1 Review

Front

What is the result of -15 - 3?

Back

-18

Front

Evaluate the expression (82 ÷ 2) × 3 – 17.

Back

106

Front

What are the coordinates of point T?

Back

(-3, -2)

Front

Evaluate the expression when x = 5 and y = 3: x + y × 2.

Back

13

Front

Which letter corresponds to the coordinate (4, -6)?

Back

Z

Front

What is the order of operations in mathematics?

Back

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

Front

What is a coordinate plane?

Back

A two-dimensional surface on which points are plotted and defined by a pair of numerical coordinates.

Front

Define a variable in algebra.

Back

A symbol, often a letter, that represents one or more numbers.

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 the difference between an expression and an equation?

Back

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