So today I learned saying numbers 1 thru 10 in japanese but I dont know how to say 11 to 99 in japanese this is what I learned 

1 = ichi

2 = ni

3= san

4= yon

5 = go

6 = roku

7 = nana

8 = hachi

9 = kyuu

10 = juu

what comes after is difficult for me all the way to 99

can someone help me here ?

https://www.youtube.com/watch?v=EjgnlIgvK_0

I don't know any japanese but when in doubt, youtube.

Thanks I learned ima say them randomly now . Someone correct me thanks ^_^

11 = juu ichi

45 = yon juu go 

46 = yon juu roku

78 = nana juu hachi

15 = juu go

29 = ni juu kyuu

67 = roku juu nana

99 = kyuu juu kyuu

I heard in class baba is something very offensive can someone explain?

It seems correct to me.

Baba is "Grandma" in a rude way. You're supposed to say "obaa-san" to be polite. Most "offensive" words in Japanese have a very normal meaning, but in an impolite way (most of "insults" in anime just mean "you"...).

Anyway, good luck with your Japanese! The beginning is pretty fun and shouldn't be too complicated, so enjoy! (it will get a lot harder if your objective is a high level though)

Baba and jiji aren't inherently offensive, they're just impolite (you will hear a LOT about politeness later on lmao). If you say it in a derogatory manner yes it will be offensive.

I assume the context was learning the words for your own or someone else's family members. In that case you should use obaasan and ojiisan.

Thanks 

And someone told me in class baba means old hag or calling someone ugly then the japanese you offended slap you some kid told me this whos 4th gen japanese but hes entirely white but has japanese blood in him

He didnt say it to me he heard someone say baba . The kid just explained it to me what it meant lol just wanted to make sure. but yeah, I'm sexy :)

I think he said that to teacher to learn teacher said meaning but said it differently . But yeah, noone said baba to offend XD

What's the diference between konichiwa and ohaiyoo?