How can we help?

You can also find more resources in our Help Center.

add

a, make an addition by combining numbers

added

a, combined or joined to increase in size or quantity or scope

amount

how much there is of something that you can quantify

around

(of quantities) imprecise but fairly close to correct

begin

take the first step or steps in carrying out an action

between

In the middle of two things

calculator

a small machine that is used for mathematical calculations

certain

certain to occur

change

the balance of money received when the amount you tender is greater than the amount due

changed

made or become different in some respect

choose

pick out, select, or choose from a number of alternatives

coin

a metal piece (usually a disc) used as money

correct

adjust or make up for

cost

the property of having material worth (often indicated by the amount of money something would bring if sold)

date

the particular day, month, or year (usually according to the Gregorian calendar) that an event occurred

double

twice as great or many

doubled

multiplyed by two

draw

make a mark or lines on a surface

drew

past tense of draw

equal

be identical or equivalent to

exactly

Completely correct in every detail.

flips

creating a mirror image

largest

greatest in size of those under consideration

least

smallest

left over

what remains

length

a measure of the straight-line distance between two points

less than

When a number is smaller than the other number. Example 107 < 215

likely

has a good chance of being the case or of coming about

more than

greater in number relative to something else

most

greatest amount or number

pattern

A series of numbers or figures that follow a rule

row

a linear array of numbers side by side

shaded

colored in

symmetrical

balanced in arrangement; capable of division by a central line into similar halves

symmetry

having the same shape, size, and position on both sides of a dividing line

tally

the act of counting

timetable

a table of times of arrivals and departures

total

the whole amount

turns

rotates or moves around an axis

width

The measurement or extent of something from side to side.

after

to come later

angle

the space between two lines or planes that intersect

area

the number of square units needed to cover a flat surface

before

at or in the front

corner

the point where three areas or surfaces meet or intersect

difference

the number that remains after subtraction

different

not like

faces

the flat surfaces of a 3-D figure

false

not correct

horizontal

Side to side

parallel

lines that will never meet, no matter how long you stretch them (like railroad tracks!)

perimeter

the size of something as given by the distance around it

remaining

what is left

sum of

to add up

vertical

Straight up and down