Nah, the keys you mention are not the problem. The problem is the whole NUMPAD block including:
1.row - Insert, Home, PgUp, Print Scr
2. row - Delete, End, PgDn, Scroll Lock
3. row - Num Lock, /, *, Pause
4. row - 7, 8, 9, -
5. row - 4, 5, 6, +
6. row - 1, 2, 3, Enter (double-height)
7. row - 0, ., Enter
I'm not sure about rows 4,5,6,7 but the + sign should be single height key just like '-' or '/' and the row 2. has the wrong inclination/profile for a G80-1800.