If there are 264 students in a school and there are 84 eighth graders and There are 22 fewer seventh graders than sixth graders. Then which grade has the most students and how many students are there.

Answer 1

sixth graders ---x
7th graders ---- x-22
8th graders --- 84

solve : 84 + x-22 + x = 264
etc.

Answer 2

Thank you

Answer 3

No you do not need to regroup