Download MathWallet first：https://www.mathwallet.org
Switch to Solona wallet (Create new Solana Wallet operation guide)
Open SerumPro Math in DApp store
Choose Mathwallet in the page
Click Connect wallet
Select the trading pair, for example MATH/USDT
Serum DEX takes the form of order book, which allows user to enter the unit price and quantity of the order based on the current order in the market, and then click Buy MATH to confirm the payment
After completion of payment, the assets are in Unsettled Balance mode, if need to sell or display amount in the wallet, click Settle
Video Guide：