By which I mean getting numbers jumbled up etc? My 25MO as opposed to saying 1,2,3 will say 2,6,8 lol. If we count things she knows when there's 2 of something and if I ask her to count objects in a book for example she will point to each item individually and go up her numbers, often quite accurately up to 10 but if I asked her just to count to 10 she'd probably look at me like I asked her the square root of pi 
She doesn't really copy nursery rhymes or anything yet either although she clearly knows the words etc as if I leave her to finish a sentence she will do it. Also she knows lots of her colours but I think because she has only learned to say one or 2 she will default to saying one of these if asked what colour it is if that makes sense. My gut is that this is all really a formation of language issue as she's clearly very bright but has always seemed to struggle a bit to find her words although she has talked in simple sentences for a few months now. I'm just wondering how normal all this is though? Is it a behaviour thing, an ability thing or a bit both? She's clearly bright but I do worry that she's a bit quirky with how she learns things Haha