# Math, Grades 1-5 – 115 Words

English Words (115 Words) selected in "Math, Grades 1-5" will help you study for the SAT,GRE,ACT,TOEFL exams and learn english.

acute angle

an angle less than 90 degrees but more than 0 degrees

a number that is combined with another number

the arithmetic operation of summing

angle

the space between two lines or planes that intersect

area

the extent of a two-dimensional surface within a boundary

bar graph

a chart with bars whose lengths are proportional to quantities

capacity

capability to perform or produce

cardinal number

the number of elements in a mathematical set

centimeter

a metric unit of length equal to one hundredth of a meter

chance

an unknown and unpredictable phenomenon

circle

ellipse in which the two axes are of equal length

circumference

the length of the closed curve of a circle

cluster

a grouping of a number of similar things

common denominator

an integer that is a common multiple of the denominators of two or more fractions

constant

uninterrupted in time and indefinitely long continuing

corner

the point where three areas or surfaces meet or intersect

cube

a three-dimensional figure with six equal squares as faces

cylinder

a surface generated by rotating a line around a fixed line

data

a collection of facts from which conclusions may be drawn

decimal

a number in a system based on ten

diagram

a drawing intended to explain how something works

difference

the quality of being unlike or dissimilar

direction

a line leading to a place or point

distance

the property created by the space between two objects

dividend

a number to be divided by another number

divisibility

the quality of being divisible

division

the act of partitioning

elapsed time

the time that elapses while some event is occurring

equation

a mathematical statement that two expressions are the same

equilateral triangle

a three-sided regular polygon

estimation

an approximate calculation of quantity or degree or worth

fraction

a small part or item forming a piece of a whole

function

what something is used for

gram

a unit of weight equal to one thousandth of a kilogram

graph

a visual representation of the relations between quantities

greatest common factor

the largest integer that divides without remainder into a set of integers

grouping

any number of entities (members) considered as a unit

height

distance from the base of something to its top

histogram

a bar chart representing a frequency distribution

improbability

the quality of being improbable

improper fraction

a fraction whose numerator is larger than the denominator

inch

a unit of length equal to one-twelfth of a foot

inequality

lack of balance or similarity in status

investigation

an inquiry into unfamiliar or questionable activities

isosceles triangle

a triangle with two equal sides

least common multiple

the smallest multiple that is exactly divisible by every member of a set of numbers

length

the linear extent in space from one end to the other

location

the act of putting something in a certain place

mass

the property of a body that causes it to have weight

mean

denote or connote

measurement

assigning numbers to phenomena according to a rule

measuring cup

graduated cup used to measure liquid or granular ingredients

median

relating to or situated in or extending toward the middle

meter

a basic unit of length (approximately 1.094 yards)

metric system

a decimal system of weights and measures based on the meter

midpoint

a point equidistant from the ends of a line or the extremities of a figure

minute

a unit of time equal to 60 seconds or 1/60th of an hour

mode

how something is done or how it happens

multiple

having or involving more than one part or entity

multiplication

arithmetic operation determining the product of two numbers

number

a concept of quantity involving zero and units

numeral

a symbol used to represent a number

obtuse angle

an angle between 90 and 180 degrees

ordinal number

the number designating place in an ordered sequence

orientation

the act of determining one’s position

outcome

something that results

parallelogram

a quadrilateral whose opposite sides are parallel and equal

path

an established line of travel or access

pattern

a perceptual structure

percent

a proportion in relation to a whole

perimeter

a line enclosing a plane area

pie chart

a circular chart divided into triangular areas proportional to the percentages of the whole

pound

16 ounces avoirdupois

prediction

prime number

an integer that has no integral factors but itself and 1

prism

a polyhedron with two congruent and parallel faces

probability

a measure of how likely it is that some event will occur

product

an artifact that has been created by someone or some process

proof

any evidence that helps to establish the truth of something

pyramid

a polyhedron having a polygonal base and triangular sides

quotient

the number obtained by division

rectangle

a parallelogram with four right angles

remainder

something left after other parts have been taken away

rhombus

a parallelogram with four equal sides

right angle

the 90 degree angle between two perpendicular lines

rotation

the act of turning as if on an axis

rounding

(mathematics) a miscalculation that results from rounding off numbers to a convenient number of decimals

ruler

a person who governs or commands

sample

a small part intended as representative of the whole

scale

an ordered reference standard

set

put into a certain place or abstract location

similarity

the quality of being alike

size

the physical magnitude of something (how big it is)

sphere

a round three-dimensional closed surface

square

a polygon with four equal sides and four right angles

subset

a group whose members are members of another group

subtraction

arithmetic operation of deducting one quantity from another

sum

a quantity obtained by the addition of a group of numbers

surface area

the extent of a 2-dimensional surface enclosed within a boundary

survey

consider in a comprehensive way

symbolic representation

something visible that by association or convention represents something else that is invisible

table

furniture having a smooth flat top supported by legs

temperature

the degree of hotness or coldness of a body or environment

time interval

a definite length of time marked off by two instants

time zone

any of the 24 regions of the globe (loosely divided by longitude) throughout which the same standard time is used

trial and error

experimenting until a solution is found

triangle

a three-sided polygon

truncation

the act of cutting short

variability

the quality of being subject to change

Venn diagram

a diagram that uses circles to represent mathematical or logical sets pictorially inside a rectangle (the universal set); elements that are common to more than one set are represented by intersections of the circles

verification

additional proof that something that was believed is correct

volume

the property of something that is great in magnitude

whole number

any of the natural numbers or zero

width

the extent of something from side to side

zero

the mathematical symbol 0 denoting absence of quantity