if a school has a hot-dog special for lunch. there are 18 classrooms and there are 28 students in each class. estimate to the nearest ten to find out about how many hot dogs does the school need to order?

Wouldn't it be 20 x 30?

This looks like a very rough estimate. How big are the students? I like your estimate, Bobpursley.

To estimate the number of hot dogs the school needs to order, you can multiply the number of classrooms by the number of students in each class. Let's break down the calculation:

Given:
Number of classrooms = 18
Number of students in each class = 28

To get the total number of hot dogs, multiply the number of classrooms by the number of students per class:

Total number of hot dogs = Number of classrooms × Number of students per class

= 18 × 28

= 504

So, based on the given information, the school needs to order approximately 504 hot dogs.

Regarding your question about whether it should be 20 x 30, it seems like you are suggesting a different estimate. While a rough estimate can be helpful, it's important to use the correct numbers given in the problem to ensure accuracy. In this case, the problem states there are 18 classrooms with 28 students in each class.