The county school system is adding 42 employees as a result of a higher-than-expected enrollment.
Tommy Kranz, finance director, said 49 needed positions were recognized, including a third assistant principal at the new East Hamilton High School.
There are seven posts being eliminated, leaving the net increase of 42.
Mr. Kranz said after the 20th day that enrollment is up 625 students.
He said the extra employees will cost $3,564,000, but are necessary to have adequate staffing for the number of students.
The additions include 29 elementary teachers, 10 middle school teachers, four high school teachers, five ELL teachers and the assistant principal.
Cuts are five middle school teachers, two high school teachers and seven others.
The new costs are to be covered partly by additional state revenue and by the fact that the schools will not have to pay for as many charter school students as expected.