1. Numbers that have been simplified by reducing precision, typically to the nearest ten, hundred, thousand, or specified decimal place
The company reported rounded numbers of 5 million dollars in quarterly revenue.
A empresa reportou números arredondados de 5 milhões de dólares em receita trimestral.
2. Approximate figures used in informal contexts rather than exact values
Let's use rounded numbers for the estimate: approximately 200 people attended.
Vamos usar números arredondados para a estimativa: aproximadamente 200 pessoas compareceram.