I learned the numbering rule (in Brazil) at school - but have friends who didn't know it far into adulthood. The rule, ~if I remember correctly (and matches my

I learned the numbering rule (in Brazil) at school - but have friends who didn't know it far into adulthood. The rule, ~if I remember correctly (and matches my experience)~ confirmed by Googling is: 1) distance in meters from the beginning of the street to the start of the terrain where the building is in; 2)rounded to even number on the lefthand side and to odd number on the righthand side of the street/road I guess knowing the rule isn useful so you know if you are at Soandso st. 200 and yout destination is Soandso st. 2200 thats a 2km walk there