Pre Algebra Review

Front

Simplify the expression: 20 + 7

Back

27

Front

Simplify the expression: -5 + 9

Back

4

Front

How would you solve this equation: 9x = 153?

Back

Divide by 9.

Front

This property says that a(b + c) = ab + ac.

Back

Distributive Property.

Front

Solve for x: 17 = x + 3

Back

x = 14.

Front

What is the Commutative Property?

Back

The order of addition or multiplication does not change the result. (e.g., a + b = b + a).

Front

What is the Associative Property?

Back

The way numbers are grouped does not change their sum or product. (e.g., (a + b) + c = a + (b + c)).

Front

What is the definition of a variable in algebra?

Back

A symbol (often a letter) that represents an unknown value.

Front

What is the purpose of simplifying expressions?

Back

To make them easier to work with and solve.

Front

What does it mean to solve an equation?

Back

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