Pre-Algebra Midterm Review, Part II

Front

Translate and solve: four more than three times a number is 40

Back

3x + 4 = 40; x = 12

Front

What is the first step in solving 4x + 19 = 51?

Back

Subtract 19

Front

Identify all sets to which the number 24 belongs.

Back

Rational, integer, whole, natural

Front

Sally and Joe have a combined age of 41. Sally is 5 less than twice the age of Joe. How old is Joe?

Back

23

Front

What is the definition of a variable in algebra?

Back

A symbol used to represent an unknown value.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.

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 rational number?

Back

A number that can be expressed as a fraction of two integers.

Front

What is the difference between an integer and a whole number?

Back

Integers include negative numbers, while whole numbers are non-negative integers.

Front

How do you isolate a variable in an equation?

Back

By performing inverse operations to both sides of the equation.