Increment and Decrement numbers from 0-99 using Seven Segment common cathode

Hey Guys I used for loop codes to add and subtract numbers ranging from 0 to 99. It also displays the odd and even numbers from 0-99.

here are the components that I used

2 common Cathode Seven Segment display
2 7448 IC - decoders
1 Arduino mini
4 push button (connected to ground)

used this site for further information Arduino Reference - Arduino Reference

Seven Segment.zip (1.14 KB)