српашивать/спросить and задавать/задать

[nominals.livejournal.com]

My book says that the first verb, српашивать/спросить, means "to ask, to inquire of (someone) while задавать/задать means "to pose a question (to someone). I'm still confused.Can anyone explain the difference of these two verbs and provide examples??

Please help.

Number confusion

[gnomygnomy.livejournal.com]

Could someone clarify the proper way to say these expressions?


three hundred kilograms
about three hundred kilograms (estimation)


Also, does the number rule apply here? (the whole 2-4 gen. sing., 5 and up gen. pl. thing?) Trying to use "около," and this single word has humbled me into realizing I don't have as strong a grasp on the numbers as I'd previously thought.

Any help is appreciated. Thank you! :)