Hey - trying to better understand the language.
I noticed that you can say
wǒ èle - I’m hungry
or
wǒ hěn è - I’m very hungry
Is there a reason to use è as opposed to èle? What’s the difference?
Similarly, what’s the difference between kě and kěle?
le is a particle that can mean that the status of something has changed.
Saying wǒ è le means something like “I’m hungry (now, but I wasn’t before),” whereas wǒ hěn è just means “I’m very hungry,” without implying that you weren’t hungry before.
If you don’t mind my asking, how much Chinese are you planning on learning? If you’re planning to learn a lot of the language, you should probably try to find an outside resource for Chinese grammar 
I’m not really sure how much I’m going to learn. I started learning it because my 4 year old wanted to start learning it. He started on Memrise before I did, and so I had to catch up really quickly, lol
I’m sticking with it as long as he does, basically. We’ve stayed with memrise and haven’t ventured too far into any of the other resources online because memrise is simple and easy for him to grasp - it’s bare bones. While the other resources will provide a lot of information about the nuances of a language, I wonder if that’ll be too much for him to grasp.
I may look into them for my own edification, though.
Ah, I see! Well, that’s pretty cool