There are many situations where it is not necessary to give an exact number. For example, if there are \(54785\) people living in a town, you could say that the population is approximately \(55000\). ...

Imagine needing to estimate the total cost of the items in your grocery basket to decide whether to put something back. So you round to the nearest dollar for each potential purchase, using the “round ...

Learning to assess the reasonableness of an answer is an important mathematical skill. Learning to assess the reasonableness of an answer is an important mathematical skill. It’s your child’s way of ...