Steve and John were heading to school. Steve asked "John, do you know what we are doing today?" John answered "Yes, I think we are going to talk about groups, a new addition to POD, and compatible numbers.
"Kids, there are 2 types of groups. The first type of group is an equal group. An equal group is when all of the numbers are equal. The second type of group is an unequal group. An unequal group is when all the numbers are different," explained Ms. Hile.
"Today, I will teach you a new thing we are going to do in our MESS. We will be changing our MESS to a MEESS. In this MEESS, the extra E is for estimate. Estimate is when you round for an answer," explained Ms. Hile.
"Today kids, we will be talking about compatible numbers. Compatible numbers are numbers which are easy to compute mentally. They are also often used in estimating solutions," explained Ms. Hile.