Final answer:
To make the equation true, the number should be 500, which has 5 hundreds.
Explanation:
To find a number that makes the equation true, we can break down the statement provided. 'Centenas' means hundreds, and '500 unidades' means 500 units. Therefore, to make the equation true, the number should have 5 hundreds, which is equivalent to the number 500.
Learn more about Elementary Arithmetic here:
https://brainly.com/question/43107746
