Create Polygon Wallet in MathWallet App
Download MathWallet first:https://www.mathwallet.org
Create Polygon wallet
Open MathWallet, Select Polygon

Or if you already create another wallet, in the list chain list – select Polygon (icon as below), and click ‘+’ create wallet

Select ‘Create a Wallet’

Input wallet name and wallet password

Make a copy of the mnemonic (please keep the mnemonic properly and do not give it to another person in any form)
Complete mnemonics and finish creation
Transfer and receive Polygon
Click Polygon to enter receive/transfer page

Click receive to see the receiving address
