Hi!
These are the kanji for the numbers:
一 1 ichi
二 2 ni
三 3 san
四 4 shi/yon
五 5 go
六 6 roku
七 7 shichi/nana
八 8 hachi
九 9 kyû
十 10 jû
So 88 is 八十八 (8-10-8, hachi jû hachi)
So 90 is 九十 (9-10, kyû jû)
So 85 is 八十五 (8-10-5, hachi jû go)
I unfortunately don't know the kanji for strenght (not even the japanese word, I'm not so advanced).
I hope that will be Ok for you for the numbers.
Kitsune
