How do we use rounding in real-world situations? If Mrs. Baldwin has 26 students in her class, about how many students does Mrs. Baldwin have?

l l l l

l l

Forgetting to read carefully and look for key words that tell us to round. The words “about” or “estimate” tell us that an exact answer is not needed.

In your math journal, create your own real world problem for a friend to solve. Have your friend round to the nearest 10 or 100.