Early Math Dictionary

My First Math Dictionary

By: Michelle Grant Photo/Clip Art Courtesy of Google.com

addition

addend

To combine and put together two or more quantities.

+ 3

+

= 3 =

any one of the two or more numbers being added.

4 + 6 + 3 = 10 6

alike when two or more items have similar characteristics. Including same size, quantity, or amount.

addends

analog clock a clock that shows the time by the positions the hour and minute hand.

attribute characteristic of an object. includes color, shape, sides, size, weight etc.

• • • •

a graph that uses rectangular bars to show and compare how large each quantity is.

green triangle 4 equal sides 4 90º angles

bar model model that uses bars to represent known and unknown quantities

10 ?

bar graph

6

6 + 4 = 10

circle a closed shape with no vertices or sides

coins units of money that represent parts of a dollar

corner a point where the edges of a figure meet

corner

compare to distinguish wether one quantity is larger, smaller or equal to the other number.

count back a method used for subtraction

data a collection of information.

denominator the bottom number of a fraction that represents the number of parts the whole is divided into.

denominator

difference the result when one number is subtracted from another.

5-4=1

1 2

digital clock a clock that uses digits only to show time.

equal

edge the side of a polygon or line where two solid figures meet.

edge

equation a number sentence with an equal sign.

The amount on one side of the sign has the same value as the other side.

1+4=3+2

quantities that have the same amount.

= fact family a group of related facts that use the same numbers (also known as related facts).

fewer the smaller amount or quantity.

fraction fractions represent equal parts of a whole.

greater than

half of

greater than is used to compare two numbers when the first number is larger than the second number.

one of 2 equal parts.

2>1

intersect

horizontal a geometric line that runs from right to left across the page.

the point where two lines cross over.

intersection

length how long something is. the distance from one place to another.

more the greater quantity or amount.

this has more!

number line a line diagram that represents numbers as points on a line.

numerator the number above the line of a fraction, showing number or parts of the whole,

numerator

numeral a symbol used to represent a number.

1 2 3 4 5

I II III IV V

6 7 8 9 10

VI VII VIII VIIII X

object a material thing that can be seen and touched.

ones

parallel

a single unit or object.

two lines on a plane that never meet.

6 ones

picture graph a graph that uses symbols to show data.

place value the value of a digit because of its place in the number.

1 3

side

solid shapes

one of the line segments that makes a flat, two-dimensional shape. one side

a shape that is not flat; an object that has three dimensions (height, length, width).

sort

subtract

to organize groups according to shared characteristics.

to take away, remove, or compare quantities.

5-2=3