addition
arithmetic operation
calculation
coin
compare
comparison
cube
dice
difference
differential
earning
economic
equal
equivalence
gap
hourly wage
income
inequality
labor
male
man
math symbol
mathematical symbol
men
miniature
minimum wage
minimumwage
money
monthly
pay
paycheck
payroll
people
person
pile
poor
poverty
price
rich
salary
social
stack
subtraction
unequal
wage
wealth
work
worker
working hours