Puzzle game with various level
Start button
Each level with timer 7 secs
First level of questions is displayed
Addition question (eg 7+3 ) user has to input the answer if correct green light
Wrong red light
Another level (3+4)
Answer correct green answer wrong red light
Another level is subtraction question (7-3)
User has to inpur answer w same leds
Then another level subtraction
Display score
Reset button
No arduino
There must be a squential and combinational circuits