To send your tokens from myetherwallet to any other exchange you own, You have to add them to myetherwallet.
Because myetherwallet doesn’t show you that tokens you own.
Then how do you know that you have tokens in your wallet?
Etherscan.io is the place to track your wallet info. check out more secure accessing methods to your myetherwallet
Here is the step-by-step guide on how to add a custom token to myetherwallet.
Access your wallet in a safer way that I talk about in the earlier post.

Here’s what you need to find on the right side of the dashboard.
Click on Custom Tokens.

Then this dialogue box should appear.
I will show you these words means.
Token Contract Address: This refers to the address location of the actual token contract that manages the logic for the tokens.
Token Symbol: The name of the token that you are going to add. (EX: Bitcoin’s Symbol is BTC)
Decimals: The Decimals value is the number of digits that come after the decimal place when displaying token values on-screen.
How do you find those to fill in the above box?
Go to Etherscan.io and search for your wallet info with the public address of your wallet.

In this token section, Select the token you want to add to your myetherwallet.

You should get details like this. Here you can see the contract address, decimals.
Then fill the box that appears in your myetherwallet and click save.
You’ve now successfully added a token to your wallet. Now you can send this token to wherever you want.