Beginner
Easy
Medium
Complicated
Advanced
100

Greater Than

Bigger

100

Net

A pattern that you can cut and fold to make a model of a solid shape

100

Base

The surface a solid object on, or the bottom line of a shape such as a triangle or rectangle. Can also be the number that gets multiplied when using an exponent

100

Expression 

Numbers, symbols, and operators,= (such as + and x) grouped together that show the value of something

100

Scale

The ratio of the length in a drawing (or model) to the length on the real thing

200
Number Line

A line with numbers placed in their correct position

200

Summary Statistics

The information that gives quick and simple description of the data

200

Diameter

The distance from one point on a circle through the center to another point on the circle. It is also the longest distance across the circle. And it is twice the radius

200

Legs

Either of the sides in a right triangle opposite an acute angle. The two shorter sides of the triangle

200

Infinity Many Solutions

When an equation has two variables, the set of ordered pairs that are the solution to the equation

300

Solution Set

Any value for x will make the equation true

300

Simulations

A way to model random events, such that simulated outcomes closely math real-world outcomes

300

Debit

An amount of money taken out of an account: The opposite of credit

300

Perimeter 

The distance around a two-dimensional shape, but for a circle it is called the circumference

300

Part-To-Part

A ratio that represents the relationships of one part of a whole another part of the same whole 

400
Visual Fraction Numbers

A visual model showing a fraction or fractions

400

Complementary Angles

Lines that are right angles (90 degrees) to each other

400

Like Terms

Terms whose variables (such as x and y) with any exponents (such as 2 in X2) are the same, and can be added together

400

Irrational Numbers

A real number that can NOT be made by dividing two integers (an integer has no fractional part). Its decimal also goes on forever without repeating.

400

Tip

An amount of money extra that is given to a worker such as a waiter or waitress who performs a service fro you. A common amount is 15% of cost of the meal or other service

500

Quantity 

How much there is of something

500

Arrangement 

A grouping of objects

500

Coordinates 

A set of values that show an exact position. On graphs it is usually a pair of numbers: the first number shows the distance along, and the second number shows the distance up or down

500

Perpendicular Lines

Two angles when they add up to 90 degrees (a right angle). They don't have to be next to be each other, just so long as the total is 90 degrees

500

Square Roots

A value that, when multiplied but itself, gives the number