Identify Numbers that Round to a Particular Hundred

In this activity, we will be rounding to the nearest hundred.

 

Remember that if the tens are 10, 20, 30 or 40, round down to the nearest hundred. If the tens are 50, 60, 70, 80 or 90, round up to the nearest hundred. 

 

Example

Which of these numbers round to 300? 

320

250

380

 

Answer

320 - The 20 in the tens place is less than 50, so round down to 300.

250 - There is a 50 in the tens place, so round up to 300.

 

380  does not round to 300. The 80 in the tens place is more than 50, so round up to 400. 

 

The numbers that round to 300 are 320 and 250. 

 

Does that make sense?

 

 

Let's get started then!