What grade is a 10 year old in?

a ten year old could be in the end of 4th grade the whole fifth grade or half of it unless they were held back or skipped a grade

Hey I know a guy whos ten and he turned ten at May 8, 2010 so actually it would be ALL of fourth and fifth grade depending on your birthday.-popkilj289

actually the 2 answers above put together are exactly the right answers. sorry i am so dumb :( thank you so much popkilj289 for improving my dumb answer