Approach method for adding

count by species, according to the approach method. example. give a return in a casino account. Try with banknotes and coins- First aproach to higher number and then follow with shorter sucessor numbers

Preknowledge
Banknote in your country (dollar, peso, bolivares)

Activity
A guy wanna to pay an account that up 20,001 US$ and give us two banknotes for 40 thousand dollars