It's easy to play Bejeweled Scratchcards:

To begin with, select the value of the scratchcards you want to play with by clicking on the + and - buttons to increase or decrease your stake.

Click Buy to start your game.

Click on a gem to watch all matching gems explode and reveal a cash sum.

If you've got three matching cash sums once you've exploded all your gems you'll win that amount.

Good luck!