could you tell me a way to earn bitcoins with an investment of maximum $ 100.00 ?
Thanks for answer

I think investment will not earn you more Bitcoins. Investing in Bitcoin is to buy and collect Bitcoin and keep it in your wallet. Then, when the price is go up, you can sell the Bitcoin and you get profit. If you want to earn more, I think you should do campaigns in this forum. You can search bounty and give away in this forum. You just need to do a simple task like posting, share, like, and play with your social media.

There are alot of ways to earn Bitcoin without invesring money. You could go to services and go for some micro task finish thier task and they will pay you some good amount of money. Or you could just stay here on the forum and join signature campaigns.

Earning without investing? I think that won't be possible. You always have to invest something to recieve something. Maybe what you are saying is without having to invest any money, if that is the case then it is very much possible, but you need to invest your time. You can go to sites that gives free satoshies and use it to gamble, you could actually make it big and if your lucky enough, you could earn 1 bitcoin or more in no time. Signature campaigns are one of the best ways to earn bitcoin without investing money. All you have to do is be active on this forum and follow the rules, then you will earn bitcoins just by posting you thoughts. Then after collecting some coins, you can use those coins as an investment or you could learn how to trade.

There are some website that are giving free bitcoin, there are called faucets, site that are giving free bitcoin and also they have free games wherein you have a chance to win bitcoins just like gambling.
Other earner are people who are in this forum only invested their time and knowledge and patience, there are campaigne in this forum who are giving an amount of bitcoin base on the number your post and also you have to meet their requirement to be able for you to be paid in bitcoin.

What i do to earn bitcoin is i join the campaigns available here in the forum. By simply joining the campaigns and follow the rules of the campaign we could earn bitcoins. But first you need to rank up so that if you will apply in any campaign you will be qualified at the same time while ranking up read lots of information about bitcoins so that later on you could try trading and investing.

there are several ways that we can get bitcoin without investing, for example we can follow the signature for the post and from the post we can get bitcoin at the end of the time limit already in apply.

i know some way to earn bitcoin without investing it. first you have join in the signature campaign. in this campaign, you need to find bounty and if they accept it you just need to do posting and its just like you're talking to the other people read about their opinion. but you'd sure that your posting is not a spam cause if you do it maybe you'll account will banned. the second is mining but i hear that the earning of bitcoin in this is quite slow. i dont have a wide knowledge in this section so you search it.

there are lot of choices to earn bitcoin, but the only things you need to do is do some research and make everyday online for you to know  many activities that you want. like for example i just earn bitcoin through joining in the signature campaign and i am contented on it because i enjoy posting and this is the thing that i admire to earn bitcoin.