Is there any food that you don’t like to eat?
Suppose it’s Natto.
One of your best friends brought you a pack of Natto.
Now you have to eat it, at least, you need to try, otherwise, not eating can be impolite.
You take a bite, then you find it is actually delicious without your expectation!!!
Your friend asks you “どう？”(How is it?)
You say “食べたら、おいしかった”.
Here, you FOUND Natto is delicious.
Let’s take a look more examples.
When you arrive at the station, you found the station was crowded.
駅（えき）に着（つ）いたら、とても混（こ）んでいました。
When you drink a soup, you found it was really hot.
スープを飲（の）んだら、とても熱（あつ）かったです。
When you buy clothe, you found some dirt was on it.
服（ふく）を買（か）ったら、汚（よご）れていました。
When you study Japanese, you found it easier than you thought.
日本語（にほんご）を勉強（べんきょう）したら、思（おも）ったより簡単（かんたん）でした。
You got it?
This is one of the uses of 「たら」.
在宅副業ならオンライン日本語教師が一番！
月40時間の稼働でも15万円ほどのお小遣いが得られます。
「オンライン日本語教師で稼ぐためのコツ」はコチラ↓↓
