Re: What if 100BTC is mistakenly sent to your wallet?

Be sincere will you return back to the address that mistakingly sent you 100BTC?

I'll put them all in an exchange and I will trade still in control but with higher amount.

I think it's easy to say but hard to understand.

Trading is not hard to understand. It's very simple. What you've learned in your secondary school can be applied on the principle of trading.