How do you tackle with numbers in your target language?
I don't mean how you learn to count in a slow childish way like 'one, two, three, etc.", but how do you learn to think and say them without thinking in a fast way.
In other words, have you ever tried to walk fast and count your steps? What happens with your pace, when you are getting, say, even to "thirteen, fifteen, sixteen..." for example. Do you slow down or remain being the same fast and lively?
Or one more example; take a small ball and start tossing it quickly from hand to hand in a ping-pong way, but keep counting. At what number you will cut out?
I have known quite a few people who could read English texts rather good and fast but when but when in the text come numbers, they either stumble or try to say them in their native language.
And I think there is one more difficulty with numbers in the target language - understanding them in normal speech. For example, do you feel that you'll be able to get from a broadcasting the amount of, like, 39675625 of something? Or what if somebody dictates you a telephone number, is it easy and natural to get it from one saying?
I am not talking about oral calculations, though, hoping it is not a problem in your native language, but what will happen if you do it in your target language?