A

add

addition

addition sentence

after

analog clock

B

balance

bar graph

before

between

C

circle

closed figure

cone

corner

count back

count on

cube (in geometry)

cylinder

D

difference

dime

double

double minus one

double plus one

E

equal

equal groups

equal parts

estimate

even number

F

face

fact family

fewer

fraction

G

greater than (>)

H

half-hour

hour

hour hand

I

inside

L

less than (<)

M

minus sign

minute hand

more than

N

nickel

number sentence

O

odd number

on

ones

open figure

outside

P

pattern

penny

plus sign

pyramid

Q

quarter

R

rectangle

rectangular prism

S

side

sphere

square (in geometry)

subtract

subtraction sentence

sum

symmetry

T

tally marks

tens

triangle

W

week

Z

zero