Famous
5= 2+3=5 and jumbled up letters
education is 9 letters 4+5+6=cat 7-i 3-u 2+8+9+1=done
A+5=-5a+5 A=-5a+5-5 (bring one of the 5 over)(not necessary) A=-5a (if big and small letters are the same, A=a=0; if not, when A=35,a=-7)
EDUCATION
Sticking a query mark at the end of a bunch of numbers and letters does not make a sensible question that can be answered.
first -- 5 letters second -- 6 letters third -- 5 letters fourth -- 6 letters fifth -- 5 letters sixth -- 5 letters seventh -- 7 letters eighth -- 6 letters So the nest number would be 5, because there are 5 letters in ninth.
Note that the reason there exists a technique called multiplication is so that we do not have to perform tedious and lengthy series of addition such as the one you have presented. So, you have given us 24 of the number 5 to add. 24 x 5 = 120. (Addition form) 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 120
Thirty
5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 55
5 + 5 + 5 + 5 + 5 + 5 = 30
4 + 6 + 6 + 5 + 5 + 4 + 6 + 5 + 5 + 6 + 5 + 5 + 5 + 3 = 70
5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 45, the shorter version is 5*9.