Click the "Hint" button to help you fill in a number in a blank. Once you hit the "Hint" button, it will show you what number to put in a random blank for a second. So look FAST. You can hit the button 4 times and 4 times only. Once you have hit the button 4 times, you're out of luck you're on your own. You can click 'Score' to check your score. How to fill in the blanks are in the game. When you are done, click 'Done' and you will see how you did, score will be based on how many times you clicked the button 'Hint'. You will also see how many errors you made. GOOD LUCK!!