PreAlgebra Units 4 (5-6) and 5 (7-1 through 7-3) Review

Front

What is an inequality?

Back

An inequality is a mathematical statement that shows the relationship between two expressions that are not equal, using symbols like <, >, ≤, or ≥.

Front

How do you multiply mixed numbers?

Back

To multiply mixed numbers, convert them to improper fractions, multiply the numerators, multiply the denominators, and simplify if necessary.

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width (Area = length × width).

Front

What is the Distributive Property?

Back

The Distributive Property states that a(b + c) = ab + ac, meaning you can distribute a number across a sum.

Front

How do you solve an inequality?

Back

To solve an inequality, isolate the variable on one side using inverse operations, and remember to reverse the inequality sign when multiplying or dividing by a negative number.

Front

What does it mean to graph an inequality?

Back

Graphing an inequality involves drawing a number line or coordinate graph to show all the possible solutions that satisfy the inequality.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/2.

Front

How do you simplify fractions?

Back

To simplify fractions, divide the numerator and the denominator by their greatest common factor (GCF).

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value that does not change.

Front

What is the purpose of parentheses in mathematical expressions?

Back

Parentheses indicate which operations should be performed first in an expression, following the order of operations.