Cambridgeshire County Council has backed £161m of cuts in its budget, which will see the loss of 450 posts.
The Conservative-controlled authority said it had a funding gap of £50m, increasing to £161m over five years, after a drop in its government grant.
The savings include a £1m cut to disability services for children and a £3m reduction in school transport.
The council employs about 18,000 people, which includes about 12,000 teaching staff.
There will be no increase in the county council's share of council tax in the next financial year.