Pre-Algebra Check

Front

What is the result of -5 - (-3)?

Back

-2

Front

What is the simplified form of -r - 10r?

Back

-11r

Front

Calculate 2 + (9² - 4).

Back

79

Front

Solve (2 + 7 - 1) ÷ 2².

Back

2

Front

What is the value of x in the equation 4x + 7 = 23?

Back

x = 4

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 simplify an expression?

Back

To reduce it to its simplest form by combining like terms.

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 the result of 9²?

Back

81

Front

How do you solve for x in the equation 2x + 3 = 11?

Back

x = 4.