At the start there are no lights on, on the breadboard and the number 0 is lit up on the microbit LEDs. I was able to use button “a” to turn on the 1st(red) LED and make the number 1 on the microbit LEDs. Then if you press button “b” the 2nd(green) LED turns on with the number 2 on the microbit LEDs. And when you press buttons “a” and “b” together both lights turn on and make the number 3 on the microbit LEDs.
