1
2
3
4
5
arm
background
business
caucasian
collection
communication
concepts
count
counting
digit
education
figure
finger
fingers
five
four
gesture
gesturing
group
hand
hands
help
human
index
isolated
learn
male
man
math
mathematics
maths
number
numbers
one
palm
question
school
set
sign
solution
study
symbol
three
two
white