Flash Game Volume 2

I want a flash based game created that completes some minor errors to a current game I have. The game currently works on multiplication and division sums For example, currently a question comes up that says 10 x 2 and user must input 20 This game I want to make will be Volume 2 'Add & Subtract' Here the user will have three games modes: 1) Addition 2) Subtraction 3) Arcade Mode <--- This is a mix of (1) and (2) Here users will now have to complete addition and subtraction For example: (1) Addition - Some questions may say: 5 + 2 and user input 7 19 + 27 and user input 46 111 + 234 and user input 345 (2) Subtraction - some questions may say: 9 - 1 and user input 8 29 - 9 and user input 20 187 - 103 and user input 84 (3) Arcade Mode will combine all questions from games (1) and (2) Game mode will have a 2 minute timer, in the 2 minutes players will have this time to complete as many questions as possible in order to reach the highest possible score (+1 point for every correct answer) Game will also link back to my website via the main menu What I would also like to add in to each game (1) and (2) would be a setting to adjust the difficulty. So for example if player is in 'Addition' game mode, there will be a setting cog that the user can click on and select how many digits they will have to add, for if they click only 1 then they will only get questions such as 1 + 3 etc, if they select 2 they will have 23 + 46, if they select 3 they will have 111 + 243 etc, so they can select up to 4 digits in the settings to alter the difficulty of the game. Thanks I look forward to hearing your thoughts/response AccessMaths