A

Addition

the process of calculating the total of two or more numbers or amounts.

B 

Base

In geometry, the base of a shape is the side (usually the bottom) that forms a right (90 degree) angle with the height of the object.

C

calculation

a mathematical determination of the amount or number of something.

D

Division

the process of dividing a matrix, vector, or other quantity by another under specific rules to obtain a quotient.

E

edge

the outside limit of an object, area, or surface.

F

Fractions

a numerical quantity that is not a whole number (e.g. 1/2, 0.5)

G

Geometry

the branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogues

H

Height

the measurement of someone or something from head to foot or from base to top

I

Improper fraction

a fraction in which the numerator is greater than the denominator, such as 5/4.

J

Jump

push oneself off a surface and into the air by using the muscles in one's legs and feet.

K

kilometer

a metric unit of measurement equal to 1,000 metres (approximately 0.62 miles

L

Length.

the measurement or extent of something from end to end; the greater of two or the greatest of three dimensions of an object

M

multiplication

multiplication is repeated addition

N

Number

an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations.

O

obtuse angle

An obtuse angle is an angle that measures more than 90 degrees and less than 180 degrees

P

pattern

a repeated decorative design.