Question

At the beginning of the school year, there were three 4th grade classes. Mr. Smith’s class had 19 children, Mr. Day’s class has 17 children, and Ms. Brown’s class had 20 children. At the end of the year there were still three classes, but 13 children had moved during the year. How many total students were left at the end of the year?

Answer 1

There were 43 students left at the end of the year

Answer 2

Add 20, 19, and 17 when you get the sum of that then subtract the sum with 13 and you should get the answer which will be 43.